7.8.1.0 - Force10 Networks

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Preventing Network Disruptions with BPDU Guard The Portfast (and Edgeport, in the case of RSTP, PVST+, and MSTP) feature should be configured on ports that connect to end stations. End stations do not generate BPDUs, so ports configured with Portfast/ Edgport (edgeports) do not expect to receive BDPUs. If an edgeport does receive a BPDU, it likely means that it is connected to another part of the network, which can negatively effect the STP topology. The BPDU Guard feature blocks an edgeport upon receiving a BPDU to prevent network disruptions, and FTOS displays Message 30. Enable BPDU Guard using the option bpduguard when enabling PortFast or EdgePort. Figure 509 shows a scenario in which an edgeport might unintentionally receive a BPDU. The port on the Force10 system is configured with Portfast. If the switch is connected to the hub, the BPDUs that the switch generates might trigger an undesirable topology change. If BPDU Guard is enabled, when the edge port receives the BPDU, the BPDU will be dropped, the port will be blocked, and a console message will be generated. Message 30 BPDU Guard Error 3w3d0h: %RPM0-P:RP2 %SPANMGR-5-BPDU_GUARD_RX_ERROR: Received Spanning Tree BPDU on BPDU guard port. Disable GigabitEthernet 3/41. Figure 509 Enabling BPDU Guard 3/41 Switch with Spanning Tree Enabled Force10(conf-if-gi-3/41)# spanning-tree 0 portfast bpduguard Force10(conf-if-gi-3/41)#show config ! interface GigabitEthernet 3/41 no ip address switchport spanning-tree 0 portfast bpduguard no shutdown Hub fnC0064mp 746 Spanning Tree Protocol
FTOS Behavior: BPDU Guard and BPDU filtering (see Removing an Interface from the Spanning Tree Group on page 743) both block BPDUs, but are two separate features. BPDU Guard: • is used on edgeports and blocks all traffic on edgeport if it receives a BPDU • drops the BPDU after it reaches the RPM and generates a console message BPDU Filtering: • disables Spanning Tree on an interface • drops all BPDUs at the line card without generating a console message STP Root Selection The Spanning Tree Protocol determines the root bridge, but you can assign one bridge a lower priority to increase the likelihood that it will be selected as the root bridge. You can also specify that a bridge is the root or the secondary root. To change the bridge priority or specify that a bridge is the root or secondary root: Task Command Syntax Command Mode Assign a number as the bridge priority or designate it as the root or secondary root. priority-value range: 0 to 65535. The lower the number assigned, the more likely this bridge will become the root bridge. The default is 32768. • The primary option specifies a bridge priority of 8192. • The secondary option specifies a bridge priority of 16384. bridge-priority {priority-value | primary | secondary} PROTOCOL SPANNING TREE View only the root information using the show spanning-tree root command (see Figure 510) from EXEC privilege mode. Figure 510 show spanning-tree root Command Example R1#show spanning-tree 0 root Root ID Priority 32768, Address 0001.e80d.2462 We are the root of the spanning tree Root Bridge hello time 2, max age 20, forward delay 15 R1# SNMP Traps for Root Elections and Topology Changes • Enable SNMP traps for Spanning Tree state changes using the command snmp-server enable traps stp. • Enable SNMP traps for RSTP, MSTP, and PVST+ collectively using the command snmp-server enable traps xstp. FTOS Configuration Guide, version 7.8.1.0 747
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FTOS Configuration Guide for ® the
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This chapter contains the following
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Enhanced Fan Tray: The enhanced fan
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• Management on page 8 • System
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System • SNMP OID for Interface O
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Contents New Features . . . . . . .
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Chapter 4 802.1X . . . . . . . . .
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Multi-Exit Discriminators (MEDs) .
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Chapter 13 Internet Group Managemen
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UDP Helper with Broadcast-all Addre
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Viewing Information Advertised by A
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Override Bootstrap Router Updates .
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Chapter 32 Remote Monitoring . . .
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Chapter 37 Storm Control. . . . . .
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Appendix A Standards Compliance . .
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Preface About this Guide Objectives
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The FTOS Command Line Interface (CL
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Figure 2 CLI Modes in FTOS EXEC EXE
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Table 2 FTOS Command Modes CLI Comm
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Obtaining Help Obtain a list of key
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Filtering show Command Outputs Filt
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Chapter 2 Getting Started This chap
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Configuring a Host Name The host na
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To configure a username and passwor
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Copying Files to and from the Syste
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Task Command Syntax Command Mode Sa
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Viewing Configuration Files Configu
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Chapter 3 Management Management is
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Task Command Syntax Command Mode Al
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Apply a Privilege Level to a Userna
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Send System Messages to a Syslog Se
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Display the Logging Buffer and the
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Synchronize log messages You can co
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Enable FTP server To enable the sys
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• Enable diagnostics on an SFM on
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To view diagnostic results, use the
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Step Task Command Syntax Command Mo
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A two types of locks can be set: au
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Chapter 4 802.1X 802.1X is supporte
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Figure 38 RADIUS Frame Format Code
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Configuring 802.1X Configuring 802.
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Configuring Request Identity Re-tra
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• ForceUnauthorized an unauthoriz
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Figure 45 Configuring a Reauthentic
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In Figure 47 shows the configuratio
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Figure 49 Configuring an Authentica
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Chapter 5 IP Access Control Lists (
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• L3 ACL (ipv4acl): 6 • L2 ACL(
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In cases such as these, where class
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Figure 54 illustrates how the seq c
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To create a filter for TCP packets
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Established Flag The est (establish
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To view which IP ACL is applied to
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• To deny routes with a mask less
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Step Command Syntax Command Mode Pu
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Command Syntax Command Mode Purpose
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Create a route map Route maps, ACLs
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Example 1 Force10(conf)#route-map f
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To configure a set condition, use a
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Note: If the continue clause is con
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Chapter 6 Border Gateway Protocol B
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A stub AS is one that is connected
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Establishing a session Information
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BGP Attributes Routes learned via B
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• A path with no AS_PATH configur
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An MED is a non-transitive attribut
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Next Hop The Next Hop is the IP add
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Figure 82 shows a scenario where Ro
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• SNMP set for BGP is not support
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Table 7 displays the default values
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The third line of the show ip bgp n
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Use the show ip bgp peer-group comm
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Use the show ip bgp neighbors comma
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To disable this feature, use the no
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Filtering with Regular ExpressionFi
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Use these commands in the following
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Manipulate the COMMUNITY attribute
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Use the show ip bgp community comma
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Use the following command in the CO
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Use the following commands in the C
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To set dampening parameters via a r
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Change BGP timers Use either or bot
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Route map continue The BGP route ma
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Debugging BGP Use any of the comman
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Capturing PDUs Capture incoming and
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Figure 105 is a graphic illustratio
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Figure 107 Enable BGP - Router 2 R2
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Figure 109 Enable Peer Group - Rout
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Figure 111 Enable Peer Groups - Rou
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Chapter 7 Border Gateway Protocol B
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A stub AS is one that is connected
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Establishing a session Information
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BGP Attributes Routes learned via B
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• A path with no AS_PATH configur
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An MED is a non-transitive attribut
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Next Hop The Next Hop is the IP add
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Figure 122 shows a scenario where R
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• SNMP set for BGP is not support
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Table 10 displays the default value
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The third line of the show ip bgp n
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Use the show ip bgp peer-group comm
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Use the show ip bgp neighbors comma
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To disable this feature, use the no
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Filtering with Regular ExpressionFi
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Use these commands in the following
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Manipulate the COMMUNITY attribute
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Use the show ip bgp community comma
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Use the following command in the CO
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Use the following commands in the C
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To set dampening parameters via a r
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Change BGP timers Use either or bot
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Route map continue The BGP route ma
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Debugging BGP Use any of the comman
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Capturing PDUs Capture incoming and
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Figure 145 is a graphic illustratio
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Figure 147 Enable BGP - Router 2 R2
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Figure 149 Enable Peer Group - Rout
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Chapter 8 Configuration Replace and
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You do not have to enable the archi
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Figure 158 Force10#configure replac
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Configuring Auto-archive Figure 162
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Figure 164 Viewing the Difference b
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Chapter 9 Dynamic Host Configuratio
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• Option 82 on page 281 • DHCP
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Enable DCHP snooping Step Task Comm
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Chapter 10 Force10 Service Agent Fo
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Designating an administrator email
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Each command in the procedure, abov
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Using FTSA for Event Handling The p
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4 5 6 contact-name name CONFIGURATI
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Table 13 shows the three preset tes
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The following tests are all configu
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Using the basic procedure presented
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• Message type 2: On system failo
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Figure 173 shows an example of the
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Using FTSA Show Commands The FTSA
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Chapter 11 GARP VLAN Registration P
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Enabling GVRP Globally Enable GVRP
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Chapter 12 High Availability High A
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Message 5 FTOS Version Incompatibil
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C-Series RPMs have one CPU, the CP.
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RPM synchronization Data between th
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On the C-Series, when a secondary R
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Pre-configuring a line card slot Yo
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Graceful Restart Graceful Restart i
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• Hot-lock IP ACLs (supported on
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If you do not have the proper boot
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View your cache boot configuration
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Chapter 13 IGMP version 1, version
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Figure 196 Leaving a Multicast Grou
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Figure 198 2 Interface Multicast Gr
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Viewing IGMP Enabled Interfaces Int
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Adjusting the IGMP Querier Timeout
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Enabling IGMP Immediate-leave Confi
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Chapter 14 Interfaces This chapter
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Overview of Layer Modes On all syst
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Configuration Task List for Physica
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Configuring Layer 3 mode By assigni
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To configure IP addresses on a Mana
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To assign an IP address, use the fo
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With this feature, the user can cre
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The port channel is now enabled and
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Figure 216 Error Message Force10(co
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Configure the minimum oper up links
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Balancing may be applied to IPv4, s
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Hash algorithm The load-balance com
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Create a single-range Figure 219 Cr
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To show the defined interface-range
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Figure 226 Command Example: monitor
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• This feature is not supported o
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• Link dampening can be applied t
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The globally assigned 48-bit Multic
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Configuring MTU Size on an Interfac
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Setting speed and duplex mode of Et
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Figure 235 Setting Auto-Negotiation
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Figure 238 Configuring Rate Interva
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Clearing interface counters The cou
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Chapter 15 IP Addressing IP Address
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To assign an IP address to an inter
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To view the configured routes, use
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Enable dynamic resolution of host n
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ARP FTOS uses two forms of address
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2. Configure a broadcast address on
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UDP Helper with Broadcast-all Addre
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Packet 2 is sent from a host on VLA
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Chapter 16 IPv6 Introduction This c
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• Prefix Renumbering - Useful in
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The Payload Length limit of 2 bytes
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01 Discard the packet. 10 Discard t
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Implementing IPv6 with FTOS FTOS su
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Feature and/or Functionality First
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Figure 257 MTU Discovery Path Sourc
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• PIM in Source Specific Multicas
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Figure 260 Command Example: show ca
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Assign a Static IPv6 Route IPv6 Sta
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Figure 262 illustrates the show ipv
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Clear IPv6 Routes Use the clear IPv
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Chapter 17 Link Aggregation Control
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FTOS supports LAGs in the following
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Set the LACP long timeout PDUs are
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Step Task Command Command Mode 2 Cr
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Configure LACP to be hitless using
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Figure 279 Inspecting Configuration
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Summary of the configuration on ALP
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Figure 283 Using the show interface
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Figure 285 Using the show lacp Comm
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Chapter 18 Layer 2 Layer 2 features
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This section has the following sub-
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Task Command Syntax Command Mode Sh
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Figure 288 Far-end Failure Detectio
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Configuring FEFD You can configure
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Figure 293 Debug FEFD packets displ
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Chapter 19 Link Layer Discovery Pro
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Figure 296 Organizationally Specifi
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• storing the information that en
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Figure 298 TLV Type (127) The appli
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Important Points to Remember • LL
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Step Task Command Command Mode * No
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Figure 305 Viewing All Information
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Configuring Transmit and Recieve Mo
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Figure 309 debug lldp detail—LLDP
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Table 43 LLDP System MIB Objects TL
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Chapter 20 Multiple Spanning Tree P
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4. Create Multiple Spanning Tree In
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Figure 313 Viewing MSTP Port States
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Figure 315 Viewing the MSTP Region
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Task Command Syntax Command Mode Ch
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Figure 319 Router 1 Running-configu
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Figure 321 Router 3 Running-configu
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Figure 323 Displaying BPDUs and Eve
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Chapter 21 Multicast Features This
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Limit the Number of Multicast Route
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Rate Limit IGMP Join Requests If yo
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Prevent a PIM Router from Processin
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Tune the Central Scheduler for Mult
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Chapter 22 Network Time Protocol Ne
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Configure NTP broadcasts With FTOS,
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Configure a source IP address for N
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_ls Chapter 23 Open Shortest Path F
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Areas allow you to further organize
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Figure 336gives some examples of th
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Link-State Advertisements (LSAs) A
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Cost is a numbered rating 1-65535.
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Multi-Process OSPF (OSPFv2, IPv4 on
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OSPF Adjacency with Cisco Routers T
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Use these commands on one of the in
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Message 15 If you try to enable mor
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OSPF, by default, sends hello packe
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Use the following command in the RO
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Command Syntax Command Mode Usage N
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Use the show config command in CONF
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Command Syntax Command Mode Usage g
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Filter routes To filter routes, use
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Troubleshooting OSPFv2 FTOS has sev
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Use the following command in EXEC P
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Enable IPv6 Unicast Routing Command
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Configure Passive-Interface Use the
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Troubleshooting OSPFv3 FTOS has sev
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Basic OSPFv2 Router Topology The fo
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Chapter 24 PIM Sparse Mode PIM Spar
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the RP to remove the outgoing inter
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Figure 358 Viewing the PIM Multicas
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Figure 359 Configure S, G Expiry ti
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Figure 361 Electing a Rendezvous Po
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If a graceful-restart capable route
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Chapter 25 PIM Source Specific Mode
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Implementation Information • The
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Figure 366 R2(conf )#do show ip pim
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Chapter 26 Power over Ethernet Powe
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Enabling PoE on a Port PoE is disab
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Table 51 describes the fields that
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Manage Power Priorities PoE-enabled
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When a failed PSU is replaced and t
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Figure 376 LLDP Configuration for O
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Step Task Command Command Mode 1 Cr
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Chapter 27 Port Monitoring Port Mon
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Port Monitoring on C-Series and S-S
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Figure 385 Port Monitoring Configur
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Flow-based Monitoring Flow-based Mo
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Chapter 28 Private VLANs FTOS 7.8.1
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Private VLAN Commands The commands
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Creating a Primary VLAN A primary V
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Figure 390 Configuring VLANs for a
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• show vlan private-vlan mapping:
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Chapter 29 Per-VLAN Spanning Tree P
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To configure hello-time, use the co
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The following command configures th
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To disable PVST+ priority on a part
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Per-Port BPDU Block As detailed in
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Chapter 30 Quality of Service Quali
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Table 57 FTOS Support for Port-base
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Figure 415 Configuring dot1p Priori
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Display how your rate limiting conf
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Figure 423 Using the Order Keyword
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FTOS Behavior: An explicit “deny
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Set a DSCP value for egress packets
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Specify WRED drop precedence Specif
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• You cannot apply an input Layer
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Create WRED Profiles To create a WR
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Allocating Bandwidth to Multicast Q
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Chapter 31 Routing Information Prot
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• Generate a default route on pag
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Control RIP routing updates By defa
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Figure 432 shows an example of the
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Summarize routes Routes in the RIPv
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Configuring RIPv2 on Core 2 Figure
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RIP Configuration on Core 3 Figure
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RIP Configuration Summary Figure 44
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Chapter 32 Remote Monitoring Remote
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Set rmon alarm To set an alarm on a
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The following example shows the rmo
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Chapter 33 Rapid Spanning Tree Prot
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Verify that an interface is in Laye
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View the interfaces participating i
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R1#show spanning-tree rstp Root Ide
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• Max-age is the length of time t
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Verify that EdgePort is enabled on
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Chapter 34 Security Security featur
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Configure Accounting of EXEC and pr
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Configure AAA Authentication login
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Server-side configuration TACACS+:
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Configure the enable password comma
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Figure 460 Configuring a Custom Pri
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RADIUS Authentication and Authoriza
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To view the configuration of RADIUS
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Figure 462 Failed Authentication Fo
Page 695 and 696: To view the TACACS+ configuration,
Page 697 and 698: Figure 464 Specifying an SSH versio
Page 699 and 700: Figure 466 Enabling SSH Password Au
Page 701 and 702: Step Task Command Syntax Command Mo
Page 703 and 704: VTY Line and Access-Class Configura
Page 705 and 706: To apply a MAC ACL on a VTY line, u
Page 707 and 708: Chapter 35 sFlow Configuring sFlow
Page 709 and 710: Enable and Disable sFlow By default
Page 711 and 712: Show sFlow on a Line Card Use the f
Page 713 and 714: For example, if Gig 1/0 and 1/1 are
Page 715 and 716: Important Points to Remember • Th
Page 717 and 718: Chapter 36 Simple Network Managemen
Page 719 and 720: View your SNMP configuration, using
Page 721 and 722: To configure system contact and loc
Page 723 and 724: Table 70 Force10 Enterprise-specifi
Page 725 and 726: The relevant MIBs for these functio
Page 727 and 728: Note: In Unix, enter the command sn
Page 729 and 730: Force10 provides additional MIB Obj
Page 731 and 732: Assign a VLAN Alias Write a charact
Page 733 and 734: Figure 498 shows the output for an
Page 735 and 736: Chapter 37 Storm Control Storm Cont
Page 737 and 738: Chapter 38 Spanning Tree Protocol S
Page 739 and 740: Configuring Interfaces for Layer 2
Page 741 and 742: Verify that Spanning Tree is enable
Page 743 and 744: Adding an Interface to the Spanning
Page 745: The default values are listed in Ta
Page 749 and 750: Chapter 39 Upgrade Procedures Findi
Page 751 and 752: Chapter 40 VLAN Stacking The Stacka
Page 753 and 754: Single-Tag and Untagged Support on
Page 755 and 756: Configuring a VLAN-Stack access por
Page 757 and 758: Setting the protocol type for VLAN-
Page 759 and 760: Figure 517 VLAN-Stack Network Examp
Page 761 and 762: E1200-2 Configuration E1200-2 Confi
Page 763 and 764: Making a hybrid port a trunk port a
Page 765 and 766: Customer Port A Configuring VLAN-St
Page 767 and 768: Port 13/47 is noted as a trunk port
Page 769 and 770: Chapter 41 Virtual Router Redundanc
Page 771 and 772: VRRP Benefits With VRRP configured
Page 773 and 774: To enable a Virtual Router, use the
Page 775 and 776: Configure a Virtual IP address with
Page 777 and 778: Configure the VRRP Group’s priori
Page 779 and 780: Since preempt is enabled by default
Page 781 and 782: The sum of all the costs for all tr
Page 783 and 784: Figure 544 Configure VRRP Router 2
Page 785 and 786: Chapter 42 C-Series Debugging and D
Page 787 and 788: Table 78 FTOS Link Monitoring Syslo
Page 789 and 790: Table 81 Poll Manager Syslog Messag
Page 791 and 792: — CP trace log file (look for a f
Page 793 and 794: 1. Use the show environment command
Page 795 and 796: When the trace messages are being s
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debug Commands The debug command tr
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Monitoring CPU and Memory Usage via
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Table 89 SNMP Traps and OIDs OID St
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• The complete diagnostics test s
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Figure 560 Viewing Offline Diagnost
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Bringing the Line Card Online Bring
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Deciding Whether to Tune Buffers Fo
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Figure 564 Displaying Buffer Profil
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Sample Configurations The two gener
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Appendix A Standards Compliance Thi
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1027 Using ARP to Implement Transpa
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OSPF FTOS support, per platform RFC
Page 821 and 822:
2571 An Architecture for Describing
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MIB Location Force10 MIBs are under
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Numerics 10/100/1000 Base-T Etherne
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display parameter 42 distribution a
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changing value for a router 168, 24
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configuration requirements 686 conf
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IP address of VLAN-Stack VLAN 765 V
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