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Hybrid Full and Partial-Mesh Frame Relay Network (Point-to-Point and Multipoint Subinterfaces Configuration) 200.1.1.0/24 Partial-Mesh Frame Relay 200.1.2.0/24 DLCI 101 RT1 RT2 RT3 RT4 RT5 Figure 24-4: Hybrid Full-Mesh and Partial-Mesh Frame Relay Network - Frame Relay Point-to-Point and Multipoint Subinterfaces configuration on RT1: ! interface Serial0/0 encapsulation frame-relay ! interface Serial0/0.102 point-to-point ip address 200.1.1.1 255.255.255.0 frame-relay interface-dlci 102 ! interface Serial0/0.103 point-to-point ip address 200.1.2.1 255.255.255.0 frame-relay interface-dlci 103 ! interface Serial0/0.888 multipoint ip address 200.1.3.1 255.255.255.0 frame-relay interface-dlci 104 frame-relay interface-dlci 105 ! interface FastEthernet1/0 ip address 172.16.1.1 255.255.255.0 ! - Frame Relay Point-to-Point Subinterface configuration on RT2 and RT3: ! interface Serial0/0 encapsulation frame-relay ! interface Serial0/0.101 point-to-point ip address 200.1.{x-1}.2 255.255.255.0 frame-relay interface-dlci 101 ! interface FastEthernet1/0 ip address 172.16.x.1 255.255.255.0 ! 171 Full-Mesh Frame Relay 200.1.3.0/24 DLCI 102 DLCI 103 DLCI 104 DLCI 105 Copyright © 2008 Yap Chin Hoong yapchinhoong@hotmail.com
- Frame Relay Multipoint Subinterface configuration on RT4: ! interface Serial0/0 encapsulation frame-relay ! interface Serial0/0.888 multipoint ip address 200.1.3.2 255.255.255.0 frame-relay interface-dlci 101 frame-relay interface-dlci 105 ! interface FastEthernet1/0 ip address 172.16.4.1 255.255.255.0 - Frame Relay Multipoint Subinterface configuration on RT5: ! interface Serial0/0 encapsulation frame-relay ! interface Serial0/0.888 multipoint ip address 200.1.3.3 255.255.255.0 frame-relay interface-dlci 101 frame-relay interface-dlci 104 ! interface FastEthernet1/0 ip address 172.16.5.1 255.255.255.0 - A multipoint subinterface is used when multiple VCs are associated with a subinterface. - No mapping configuration is required, as Inverse ARP is enabled by default on multipoint subinterfaces; while point-to-point subinterfaces never require mapping configuration. - The output of the show frame-relay map EXEC command on RT1 includes the L3 address mapping information on multipoint subinterfaces (learnt via Inverse ARP): RT1#sh frame-relay map Serial0/0.102 (up): point-to-point dlci, dlci 102(0x66,0x1860), broadcast status defined, active Serial0/0.103 (up): point-to-point dlci, dlci 103(0x67,0x1870), broadcast status defined, active Serial0/0.888 (up): ip 200.1.3.2 dlci 104(0x68,0x1880), dynamic, broadcast,, status defined, active Serial0/0.888 (up): ip 200.1.3.3 dlci 105(0x69,0x1890), dynamic, broadcast,, status defined, active - The disadvantage of Inverse ARP is whenever the PVC data link layer is up, a DTE router needs to learn the status and DLCIs of VCs and waits for the Inverse ARP process to occur, which can take a considerable amount of time! Whereas with manually resolved PVCs, data transmission is allowed as soon as the data link layer is up. Routers send InARP Request packets every 1 min. A remote router that receives the InARP Request packet would reply with an InARP Reply packet. Eventually both routers would have the L3-to-L2 address mapping to reach each other. - The no interface {subif-num} global configuration command is insufficient to remove a subinterface. The subinterface will still exist in the router’s memory. A router reboot is required. This also applied when changing the subinterface type (reboot is required). 172 Copyright © 2008 Yap Chin Hoong yapchinhoong@hotmail.com
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CCNA Complete Guide 2nd Edition Yap
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CCNA Complete Guide 2nd Edition Cop
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Upper Layers Lower Layers Applicati
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Cisco Hierarchical Model - Defined
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Header Length (4) Source Port (16)
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- Socket is a communication channel
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- The length of an IP address is 32
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- The following section discusses s
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- Below lists the 2 sublayers in th
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- Each switch port does not share t
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- Below lists the switch internal p
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Physical Layer - The physical layer
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- Another way to reduce emissions i
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Figure 3-7: Single-Mode and Multimo
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Wireless AP Switch Figure 3-8: 802.
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- Below lists the common IOS CLI er
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RT1#show running-config interface F
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- Cisco IOS treats a mistyped comma
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- Below describes the STP convergen
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- Refer back to Figure 5-1B, assume
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- A switch running RSTP only need 6
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Port Security Configuration - Port
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SW2# 00:25:00: STP: VLAN0001 new ro
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- Both protocols utilize a 12-bit V
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Layer 4 Switching (Content Switchin
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- VTP Pruning provides a way to pre
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VLAN Trunking Protocol Configuratio
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- VLAN information will not be prop
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- Private IP addresses are non-rout
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- Some materials calculate the numb
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Cisco Discovery Protocol (CDP) c250
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- CDP is enabled by default. The no
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Troubleshooting IP - Internet Contr
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- Firstly, PC1 purposely sends out
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- Below describes the operation of
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Maximum Hop Count Hop count metric
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- Invalid Timer specifies how long
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- Initial configuration on RT2: Rou
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- Static Routing configuration on R
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- RIPv1 and IGRP are classful routi
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- IGRP configuration on RT2: RT2(co
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MISC IP Routing Commands - The pass
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- OSPF uses a reliable protocol to
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- OSPF areas break up a network so
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- EIGRP uses the same formula as us
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- Autosummarization EIGRP supports
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- OSPF Single-Area configuration on
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- The show ip ospf database EXEC co
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OSPF Multiarea Configuration Area 1
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- Below lists the different termino
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- Verify the EIGRP configuration on
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- When a link to a neighbor fails,
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- Below shows the beauty of VLSM. B
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- RT1 and RT3 are summarizing route
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- RIPv1 and IGRP perform autosummar
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Page 127 and 128: - Figure 17-1 shows the usage of CI
Page 129 and 130: - Static NAT performs one-to-one ma
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Page 135 and 136: - Below shows the IP NAT debugging
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Page 139 and 140: - Access Control List (ACL) is the
Page 141 and 142: - Below lists some other usages of
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Page 149 and 150: Remote Access Technologies - Remote
Page 151 and 152: Digital Subscriber Lines (DSL) - DS
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Page 155 and 156: - Comparisons between synchronous a
Page 157 and 158: - PPP Encapsulation configuration o
Page 159 and 160: - The function of the username {rem
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Page 163 and 164: - Comparisons between Frame Relay L
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Page 169 and 170: - IETF Frame Relay encapsulation ty
Page 171 and 172: RT1 Frame Relay RT2 DLCI 101 Frame
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Page 185 and 186: Wireless Security - Organizations t
Page 187 and 188: Wireless Management - WLANs require
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Page 191 and 192: - ISDN offers very fast call setup
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Page 201 and 202: - The show interfaces bri{num:0 | 1
Page 203 and 204: DDR Dialer Profiles Configuration -
Page 205 and 206: - Note: IP addresses are configured
Page 207 and 208: - Below show the routing tables on
Page 209 and 210: - The configuration above defines 2
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Page 213 and 214: Catalyst Switch IOS Upgrade Procedu
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Page 217 and 218: Cisco Router Password Recovery Proc
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Page 221 and 222: Switch> Switch>en Switch#rename con
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Constructing a Compound Frame Relay
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8. Once the frame is completed, it
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Decimal Hex Binary Decimal Hex Bina
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MISC Basic Networking Notes - The m
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MISC Data Link Layer Notes - Ethern
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- The 5-4-3 repeater deployment rul
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Ethernet Autonegotiation and Duplex
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The TCP Connection States timeout s
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- Q: How does a client application
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- Urgent Data Pointer (16 bits) ind
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TCP Selective Acknowledgment (SACK)
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- Local Proxy ARP is used when ther
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Spanning Tree Protocol Port ID - Wh
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The Problem of Router-on-a-Stick Co
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- Sample Subnet Zero configuration:
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The permanent keyword in the Static
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RIPv1 and VLSM RT1 RT4 Figure A6-9:
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- Below shows the NAT operations on
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Bidirectional (2-Way) NAT PC1 172.1
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- Note: A router does not require a
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The Access Control List established
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Switch Port Access Control Lists -
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- Below shows a sample Dynamic Acce
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Router(config)#ip access-list exten
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Optional PPP Commands - The compres
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- Below shows the output of the PPP
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- Below shows the output of the PPP
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- Below configure the username and
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IEEE 802.11 Standards and Specifica
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- Figure A6-20 shows the frame form
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- Below lists the IEEE 802.11 manag
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IEEE 802.11 Types and Subtypes Type
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Client (Supplicant) EAPOL-Start EAP
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- IPsec-based VPN is comprised of 2
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- IPsec supports the following 3 ty
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Version Header Length Time To Live
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- The authentication pre-share ISAK
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Troubleshooting ISDN E1/T1 Physical
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- Below addresses ISDN E1/T1 contro
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Troubleshooting ISDN Layer 2 - Unde
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Troubleshooting ISDN Layer 3 - Only
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ISDN Loopback Test Call - In a loop
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96 Number changed. The called numbe
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C2 Channel type not implemented. Th
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locking state, STP, 39 BNC, 27 bool
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show vlan, 57 show vtp status, 58 s
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framing, 22 MAC addresses, 22 stand
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K keepalives EIGRP, 95 Frame Relay,
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PAT (Port Address Translation), 127
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star topologies, 25 startup-config
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