show cdp neighbors p.285

[dvdkm]

Table 5.5 states that the field "local interface" is the receiving port and the "port id" is the neighbors device's port. However, the output from the Router Sim Network Visualizer connected to RouterA is giving me the reverse answer. It shows under the Device ID the 2950 switch and listed under the local interface is Fas 0/9 and port id as Fas 0/0. Since the Router doesn't have Fas 0/9, is the book or simulator correct?

Router#show 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
switch Fas 0/9 170 SI 2950 Fas 0/0
Router#
Router#
Router#show cdp nei
Router#show cdp neighbors detail
-------------------------
Device ID: switch
Entry address(es):
IP Address: 0.0.0.0
Platform: cisco WS-C2950-12, Capabilities: Switch IGMP
Interface: FastEthernet0/9, Port ID (outgoing port): FastEthernet0/0
Holdtime : 146 sec

Version :
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-BIN-M), Version 12.2(13)T1, RELEASE SOFTWARE (fc1)
TAC Support: http://www.cisco.com/tac
Copyright (c) 1986-2003 by Cisco Systems, Inc.
Compiled Sat 04-Jan-03 05:58 by ccai

advertisement version: 2

[MBernardy]

Table 5.5 states that the field "local interface" is the receiving port and the "port id" is the neighbors device's port. However, the output from the Router Sim Network Visualizer connected to RouterA is giving me the reverse answer. It shows under the Device ID the 2950 switch and listed under the local interface is Fas 0/9 and port id as Fas 0/0. Since the Router doesn't have Fas 0/9, is the book or simulator correct?

Router#show 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
switch Fas 0/9 170 SI 2950 Fas 0/0
Router#
Router#
Router#show cdp nei
Router#show cdp neighbors detail
-------------------------
Device ID: switch
Entry address(es):
IP Address: 0.0.0.0
Platform: cisco WS-C2950-12, Capabilities: Switch IGMP
Interface: FastEthernet0/9, Port ID (outgoing port): FastEthernet0/0
Holdtime : 146 sec

Version :
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-BIN-M), Version 12.2(13)T1, RELEASE SOFTWARE (fc1)
TAC Support: http://www.cisco.com/tac
Copyright (c) 1986-2003 by Cisco Systems, Inc.
Compiled Sat 04-Jan-03 05:58 by ccai

advertisement version: 2

Hi,
I noticed the same. The book says 'Local Interface' is the interface you are receiving the cdp packet, however when in the sinmulator i enter sh cdp nei on the 2811 router A, i get on the column 'Local Interface' two s0/0. The columns 'Local interface' and 'Port ID' seem to be switched.
Is this a simulator bug or is the book mistaken?

Thanks,

Marco

[vanarnum]

The book is correct. I have a 2611 router connected to a 2900XL switch. E 0/0 of the router to E0/1 of the switch. The <sh cdp nei> command nets the same results described in table 5.5. I hope the attachment makes it. The attachment is a copy of the display I am referring to.