1-4 Semester 8 Internetwork Troubleshooting v1.0 - Lab 11.2.2 Copyright 2001, Cisco Systems, Inc.
Lab 11.2.2: AppleTalkEIGRP
SanJose1 SanJose2
DCE 400.2 s0/0
s0/0 400.1
e0/0 500.1
Cable Range
400-400
Zone: WanLink
e0/0 300.1
Cable Range
500-599
Zone: SanJose2
Cable Range
300-399
Zone: SanJose1
Objective
This lab will cover the steps necessary to configure an AppleTalk network to
use EIGRP on the WAN link(s) to reduce the amount of update traffic across
those links.
Scenario
International Travel Agency (ITA) has looked at your prototype from the last lab
and they are concerned about the amount of router update traffic crossing the
WAN link. They have asked you to upgrade your model to use Cisco’s EIGRP
on the WAN link.
If the lab is done in pairs, each person can run the lab steps albeit each host
may display slightly different results. It might be beneficial to coordinate your
efforts and compare results.
Step 1
Cable the lab as shown in the diagram.
Use the router configurations from the last lab, if available. If not the file Lab11-
2-2-SanJose1-Done.txt and Lab11-2-2-SanJose2-Done.txt can be loaded in
the appropriate router to save you some time.
Step 2
Configure SanJose1 using the following information. EIGRP is enabled in
global configuration mode and then specifically activated on the appropriate
interfaces. Note: RTMP must be disabled on the EIGRP interface(s).
SanJose1#conf t
SanJose1(config)#appletalk routing eigrp 1
SanJose1(config)#appletalk route-redistribution (replaces original command)
SanJose1(config)#int ser 0/0
SanJose1(config-if)#appletalk protocol eigrp (implement EIGRP on interface)
SanJose1(config-if)#no appletalk protocol rtmp (disable RTMP on the interface)
2-4 Semester 8 Internetwork Troubleshooting v1.0 - Lab 11.2.2 Copyright 2001, Cisco Systems, Inc.
Be sure to save your configuration. Occasionally you need to reboot the router
to implement a configuration change.
Step 3
Configure SanJose2 using the following information. In Appletalk every EIGRP
router must have a different AS number – just the opposite of IP and IPX.
EIGRP is enabled in global configuration mode and then specifically activated
on the appropriate interfaces. Note: RTMP must be disabled on the EIGRP
interface(s).
SanJose2#conf t
SanJose2(config)#appletalk routing eigrp 2 (not a typo – it is different)
SanJose2(config)#appletalk route-redistribution (replaces original command)
SanJose2(config)#int ser 0/0
SanJose2(config-if)#appletalk protocol eigrp (implement EIGRP on interface)
SanJose2(config-if)#no appletalk protocol rtmp (disable RTMP on the interface)
Be sure to save your configuration. Occasionally you need to reboot the router
to implement a configuration change.
Step 4
Type the show appletalk route command to display the AppleTalk route
table. It may take a minute for the routes to all show. You should now see that
the LAN from the other router is now being derived from EIGRP.
SanJose1#show appletalk route
Codes: R - RTMP derived, E - EIGRP derived, C - connected, A - AURP
S - static P - proxy
3 routes in internet
The first zone listed for each entry is its default (primary) zone.
C Net 300-399 directly connected, Ethernet0, zone SanJose1
C Net 400-400 directly connected, Serial0, zone WanLink
E Net 500-599 [1/G] via 400.2, 110 sec, Serial0, zone SanJose2
SanJose1#
Step 5
Type the show appletalkeigrp ? command to display the EIGRP
options. These should be somewhat familiar from working with the IP
counterparts.
SanJose1#show appletalkeigrp ?
interfaces AppleTalk/EIGRP Interfaces
neighbors AppleTalk/EIGRP Neighbors
topology AppleTalk/EIGRP Topology Table
traffic AppleTalk/EIGRP Traffic Statistics
Step 6
Type the show appletalkeigrp interface command to display the
EIGRP process number, the interface(s) that will use EIGRP and number of
peers on each interface.
SanJose1#show appletalkeigrp interfaces
3-4 Semester 8 Internetwork Troubleshooting v1.0 - Lab 11.2.2 Copyright 2001, Cisco Systems, Inc.
AT/EIGRP Neighbors for process 1, router id 1
Xmit Queue Mean Pacing Time Multicast Pending
Interface Peers Un/Reliable SRTT Un/Reliable Flow Timer Routes
Se0 1 0/0 28 0/10 50 0
Step 7
Type the show appletalkeigrp neighbors command to display the
EIGRP neighbor(s) immediately adjacent to the local device. The command
includes the neighbor’s address and the local interface that will reach that
neighbor.
SanJose1#show appletalkeigrp neighbors
AT/EIGRP Neighbors for process 1, router id 1
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 400.2 Se0 13 00:06:00 28 200 0 3
Step 8
Type the show appletalkeigrp topology command to display the
EIGRP network topology and successors. Notice that it also tells us that cable
range 300-399 is being redistributed into this table (from RTMP).
SanJose1#show appletalkeigrp topology
AT/EIGRP Topology Table for process 1, router id 1
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - Reply status
P 300-399, 1 successors, FD is 25601
via Redistributed (25601/0)
P 400-400, 1 successors, FD is 2169856
via Connected, Serial0
P 500-599, 1 successors, FD is 2195456
via 400.2 (2195456/25601), Serial0
Step 9
Type the show appletalkeigrp traffic command to display a
summary of all AppleTalkEIGRP traffic sent and received by the device. Notice
specifically the number of Hellos used to keep the link up as well as the
Updates and Acks (acknowledgements).
SanJose1#show appletalkeigrp traffic
AT-EIGRP Traffic Statistics
Hellos sent/received: 174/85
Updates sent/received: 4/3
Queries sent/received: 0/0
Replies sent/received: 0/0
Acks sent/received: 2/2
Input queue high water mark 1, 0 drops
Step 10
Type the show appletalk interface command to display the
configuration information relative to the interfaces. The difference that has
occurred since you last looked at this command is the indication that “Routing
protocols enabled: EIGRP” (highlighted).
SanJose1#show appletalk interface
4-4 Semester 8 Internetwork Troubleshooting v1.0 - Lab 11.2.2 Copyright 2001, Cisco Systems, Inc.
Ethernet0 is up, line protocol is up
AppleTalk cable range is 300-399
AppleTalk address is 300.1, Valid
AppleTalk zone is "SanJose1"
AppleTalk address gleaning is disabled
AppleTalk route cache is enabled
Serial0 is up, line protocol is up
AppleTalk cable range is 400-400
AppleTalk address is 400.1, Valid
AppleTalk zone is "WanLink"
Routing protocols enabled: EIGRPAppleTalk port configuration verified by 400.2
AppleTalk address gleaning is not supported by hardware
AppleTalk route cache is enabled
SanJose1#
Step 11
Type the debug apple routing command to begin debug for both RTMP
and EIGRP routing. Note the Hellos and the frequency (5 seconds). If you go
back and look at your output from the last exercise you will see that there were
routing updates involving the Serial link – there are not now, unless a link status
triggers an update.
Notice the time interval between updates from each source.
SanJose1#debug apple routing
AppleTalk RTMP routing debugging is on
AppleTalk EIGRP routing debugging is on
SanJose1#
02:23:12: atigrp2_router: received HELLO from 400.2
SanJose1#
02:23:14: AT: src=Ethernet0:300.1, dst=300-399, size=22, 2 rtes, RTMP pkt sent
02:23:14: AT: Route ager starting on Main AT RoutingTable (3 active nodes)
02:23:14: AT: Route ager finished on Main AT RoutingTable (3 active nodes)
SanJose1#
02:23:17: atigrp2_router: received HELLO from 400.2
SanJose1#
02:23:22: atigrp2_router: received HELLO from 400.2
SanJose1#
02:23:24: AT: src=Ethernet0:300.1, dst=300-399, size=22, 2 rtes, RTMP pkt sent
02:23:24: AT: Route ager starting on Main AT RoutingTable (3 active nodes)
02:23:24: AT: Route ager finished on Main AT RoutingTable (3 active nodes)
SanJose1#
02:23:27: atigrp2_router: received HELLO from 400.2
SanJose1#
02:23:31: atigrp2_router: received HELLO from 400.2
SanJose1#
02:23:34: AT: src=Ethernet0:300.1, dst=300-399, size=22, 2 rtes, RTMP pkt sent
02:23:34: AT: Route ager starting on Main AT RoutingTable (3 active nodes)
02:23:34: AT: Route ager finished on Main AT RoutingTable (3 active nodes)
SanJose1#u all
Reflection
What makes Hello packets at 5-second intervals better than routing updates
every 10 seconds?
. appletalk eigrp ?
interfaces AppleTalk/ EIGRP Interfaces
neighbors AppleTalk/ EIGRP Neighbors
topology AppleTalk/ EIGRP Topology Table
traffic AppleTalk/ EIGRP. disabled on the EIGRP
interface(s).
SanJose2#conf t
SanJose2(config) #appletalk routing eigrp 2 (not a typo – it is different)
SanJose2(config)#appletalk