Learning by Doing: CISCO Certified Network ... - SCN Research

You should see:
Randy>sh cdp neighbors
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater
Device ID Local Intrfce Holdtme Capability Platform Port ID
Ward Ser 0/0 128 R 2610 Ser 0/1
Notice with CDP we can see the identification (Ward), address/interface type (Ser
0/0), and platform (2610) of our neighbors. If we do not want to run CDP on all
of our interfaces use the “no cdp run” command.
10. Let’s see if we have any CDP traffic being generated. CDP updates every 60
seconds by default.
Randy>sh cdp traffic
You should see:
Randy>sh cdp traffic
CDP counters :
Packets output: 82, Input: 63
Hdr syntax: 29, Chksum error: 0, Encaps failed: 9
No memory: 0, Invalid packet: 0, Fragmented: 0
We can see our CDP packets coming and going. We’ll look at that other stuff
later.
11. Let’s use the protocols command to see what we have.
Randy>sh protocols
You should see:
Randy>sh protocols
Global values:
Internet Protocol routing is enabled
Ethernet0/0 is up, line protocol is up
Internet address is 192.168.3.1/24
Serial0/0 is up, line protocol is up
Internet address is 192.168.30.1/24
Ethernet0/1 is administratively down, line protocol is down
Serial0/1 is administratively down, line protocol is down
This is good…IP is running and our interfaces are up. E0/1 is down because we
didn’t configure it.
12. Let’s look at our path or “route” from one router to another:
Randy>sh ip route
You should see:
Randy>sh ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default
U - per-user static route, o - ODR
184