8.3.17.0 - Force10 Networks

More documents

Recommendations

Info

www.dell.com | support.dell.com Figure 20-1. Uplink Failure Detection How Uplink Failure Detection Works UFD creates an association between upstream and downstream interfaces. The association of uplink and downlink interfaces is called an uplink-state group. An interface in an uplink-state group can be a physical interface or a port-channel (LAG) aggregation of physical interfaces. An enabled uplink-state group tracks the state of all assigned upstream interfaces. Failure on an upstream interface results in the automatic disabling of downstream interfaces in the uplink-state group. As a result, downstream devices can execute the protection or recovery procedures they have in place to establish alternate connectivity paths as shown in Figure 20-2. 230 | Uplink Failure Detection (UFD)
Figure 20-2. Uplink Failure Detection Example If only one of the upstream interfaces in an uplink-state group goes down, a specified number of downstream ports associated with the upstream interface are put into a link-down state. This number is user-configurable and is calculated by the ratio of upstream port bandwidth to downstream port bandwidth in the same uplink-state group. This calculation ensures that there are no traffic drops due to insufficient bandwidth on the upstream links to the routers/switches. By default, if all upstream interfaces in an uplink-state group go down, all downstream interfaces in the same uplink-state group are put into a link-down state. Using UFD, you can configure the automatic recovery of downstream ports in an uplink-state group when the link status of an upstream port changes. The tracking of upstream link status does not have a major impact on CPU usage. UFD and NIC Teaming Uplink Failure Detection on a switch can be used with network adapter teaming on a server (see Network Interface Controller (NIC) Teaming) to implement a rapid failover solution. For example, in Figure 20-2 the switch/router with UFD detects the uplink failure and automatically disables the associated downstream link port to the server. The server with NIC teaming detects the disabled link and automatically switches over to the backup link in order to continue to transmit traffic upstream. Uplink Failure Detection (UFD) | 231
Page 1 and 2:
Dell PowerEdge Configuration Guide
Page 3 and 4:
October 2012 | iii
Page 5 and 6:
1 About this Guide . . . . . . . .
Page 7 and 8:
Data Center Bridging Exchange Proto
Page 9 and 10:
Displaying VLAN Membership . . . .
Page 11 and 12:
Read Managed Object Values . . . .
Page 13 and 14:
Troubleshooting Packet Loss . . . .
Page 15 and 16:
About this Guide Objectives 1 This
Page 17 and 18:
Before You Start Default Settings 2
Page 19 and 20:
DCB Support DCB enhancements for da
Page 21 and 22:
The untagged VLAN of a server-facin
Page 23 and 24:
Configuration Fundamentals 3 The De
Page 25 and 26:
Navigating CLI Modes The FTOS promp
Page 27 and 28:
Figure 3-5. Undoing a command with
Page 29 and 30:
Table 3-2. Short-Cut Keys and their
Page 31 and 32:
Multiple Users in Configuration Mod
Page 33 and 34:
Getting Started This chapter contai
Page 35 and 36:
Uplink Ports Ports 33 to 56 are ext
Page 37 and 38:
Step Task (continued) Note: Termina
Page 39 and 40:
Figure 4-4. Completed Boot Process
Page 41 and 42:
Figure 4-6. Completed Boot Process
Page 43 and 44:
Access the Aggregator Remotely Conf
Page 45 and 46:
Dell Force10 recommends using the e
Page 47 and 48:
Figure 4-10 shows an example of usi
Page 49 and 50:
To view the contents of a file, fol
Page 51 and 52:
Figure 4-14. Alternative Storage Lo
Page 53 and 54:
Aggregator Management This chapter
Page 55 and 56:
Changing System Logging Settings Yo
Page 57 and 58:
Configuring a UNIX Logging Facility
Page 59 and 60:
Enabling the FTP Server To enable t
Page 61 and 62:
Recovering from a Forgotten Passwor
Page 63 and 64:
Figure 5-5. Recovering from a Faile
Page 65 and 66:
Data Center Bridging (DCB) 6 On an
Page 67 and 68:
Figure 6-1. Priority-Based Flow Con
Page 69 and 70:
Data Center Bridging Exchange Proto
Page 71 and 72:
QoS dot1p Traffic Classification an
Page 73 and 74:
How Enhanced Transmission Selection
Page 75 and 76:
DCB Policies in a Switch Stack A DC
Page 77 and 78:
Note: On a DCBX port, application p
Page 79 and 80:
Auto-Detection of the DCBX Version
Page 81 and 82:
DCBX Error Messages An error in DCB
Page 83 and 84:
Figure 6-7. show interfaces pfc sum
Page 85 and 86:
Table 6-3. show interface pfc summa
Page 87 and 88:
Table 6-4. show interface ets detai
Page 89 and 90:
Figure 6-12. show interface dcbx de
Page 91 and 92:
Example: PFC and ETS Operation This
Page 93 and 94:
Table 6-8. Example: priority group-
Page 95 and 96:
Skippy812 Dynamic Host Configuratio
Page 97 and 98:
Assigning an IP Address Using DHCP
Page 99 and 100:
Releasing and Renewing DHCP-based I
Page 101 and 102:
Figure 7-5. DHCP Client: Debug Mess
Page 103 and 104:
DHCP Client on a Management Interfa
Page 105 and 106:
FIP Snooping 8 FIP snooping is auto
Page 107 and 108:
Figure 8-1. FIP discovery and login
Page 109 and 110:
The following sections describe how
Page 111 and 112:
FIP Snooping Prerequisites On an Ag
Page 113 and 114:
Figure 8-3. show fip-snooping sessi
Page 115 and 116:
Figure 8-7. show fip-snooping stati
Page 117 and 118:
Table 8-5. show fip-snooping statis
Page 119 and 120:
FIP Snooping Example Figure 8-11 sh
Page 121 and 122:
Internet Group Management Protocol
Page 123 and 124:
IGMP Version 3 Conceptually, IGMP v
Page 125 and 126:
Leaving and Staying in Groups Figur
Page 127 and 128:
Figure 9-6. show ip igmp groups Com
Page 129 and 130:
Interfaces 10 This chapter describe
Page 131 and 132:
Viewing Interface Information You c
Page 133 and 134:
Disabling and Re-enabling a Physica
Page 135 and 136:
The Aggregator supports the managem
Page 137 and 138:
Configuring a Static Route for a Ma
Page 139 and 140:
Port-Based VLANs Port-based VLANs a
Page 141 and 142:
Displaying VLAN Membership To view
Page 143 and 144:
Adding an Interface to an Untagged
Page 145 and 146:
Port channels can contain a mix of
Page 147 and 148:
Figure 10-12. show interface port-c
Page 149 and 150:
Create a Multiple-Range Figure 10-1
Page 151 and 152:
Maintenance Using TDR The time doma
Page 153 and 154:
MTU Size The Aggregator auto-config
Page 155 and 156:
Figure 10-19. show interfaces statu
Page 157 and 158:
Figure 10-21 shows the auto-negotia
Page 159 and 160:
Clearing Interface Counters The cou
Page 161 and 162:
iSCSI Optimization 11 An Aggregator
Page 163 and 164:
If no iSCSI traffic is detected for
Page 165 and 166:
Displaying iSCSI Optimization Infor
Page 167 and 168:
Link Aggregation The Aggregator aut
Page 169 and 170:
LACP Example Figure 12-1 shows an e
Page 171 and 172:
Figure 12-3. show lacp 128 Command
Page 173 and 174:
Figure 12-5. show interfaces port-c
Page 175 and 176:
Layer 2 The Aggregator supports CLI
Page 177 and 178:
Figure 13-1. Redundant NICs with NI
Page 179 and 180:
Link Layer Discovery Protocol (LLDP
Page 181 and 182:
Organizationally Specific TLVs Orga
Page 183 and 184:
TIA Organizationally Specific TLVs
Page 185 and 186:
LLDP-MED Network Policies TLV A net
Page 187 and 188:
LLDP Operation On an Aggregator, LL
Page 189 and 190:
Figure 14-10. Viewing All Informati
Page 191 and 192:
Debugging LLDP The debug lldp comma
Page 193 and 194: Table 14-8. LLDP System MIB Objects
Page 195 and 196: Table 14-10. LLDP-MED System MIB Ob
Page 197 and 198: Port Monitoring 15 The Aggregator s
Page 199 and 200: Figure 15-2 shows ports 0/25 and 0/
Page 201 and 202: In Figure 15-4, the host and server
Page 203 and 204: 16 Simple Network Management Protoc
Page 205 and 206: Dell Force10 supports RFC 4001, Tex
Page 207 and 208: Figure 16-6 shows the output for an
Page 209 and 210: Use dot3aCurAggFdbTable to fetch th
Page 211 and 212: Monitor Port-channels To check the
Page 213 and 214: The status of the MIBS is as follow
Page 215 and 216: Stacking Overview 17 An Aggregator
Page 217 and 218: Stack Master Election The stack ele
Page 219 and 220: Stacking Port Numbers By default, e
Page 221 and 222: Cabling Procedure The following cab
Page 223 and 224: Resetting a Unit on a Stack Use the
Page 225 and 226: Figure 17-19. show system Command E
Page 227 and 228: Troubleshooting a Switch Stack Trou
Page 229 and 230: Figure 17-27. show hardware stack-u
Page 231 and 232: Stack Unit in Card-Problem State Du
Page 233 and 234: Upgrading a Single Stack Unit Upgra
Page 235 and 236: Broadcast Storm Control 18 On the A
Page 237 and 238: System Time and Date 19 The Aggrega
Page 239 and 240: Setting the Time Zone Universal tim
Page 241 and 242: Setting Recurring Daylight Saving T
Page 243: Uplink Failure Detection (UFD) Upli
Page 247 and 248: Show Command Syntax Description sho
Page 249 and 250: Debugging UFD on an Interface To en
Page 251 and 252: Upgrade Procedures 21 To view the r
Page 253 and 254: Debugging and Diagnostics The chapt
Page 255 and 256: Broadcast, unknown multicast, and D
Page 257 and 258: Auto-configured VLANs do not exist
Page 259 and 260: Figure 22-2. show system stack-unit
Page 261 and 262: Figure 22-3. Taking a Stack Unit Of
Page 263 and 264: Table 22-2. show hardware Commands
Page 265 and 266: Recognize an Over-Temperature Condi
Page 267 and 268: The simple network management proto
Page 269 and 270: Deciding to Tune Buffers Dell Force
Page 271 and 272: Figure 22-11. Displaying Buffer Pro
Page 273 and 274: Sample Buffer Profile Configuration
Page 275 and 276: Figure 22-14. Displaying Buffer Sta
Page 277 and 278: Displaying Stack Port Statistics Th
Page 279 and 280: Figure 22-19. Mini application core
Page 281 and 282: Standards Compliance This chapter c
Page 283 and 284: General IPv4 Protocols RFC# Full Na
Page 285 and 286: Network Management (continued) RFC#
show all

8.3.17.0 - Force10 Networks

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?