12-28-2011 11:44 AM - edited 03-07-2019 04:05 AM
Hi,
I have a C4500 connected to a C6500 (the connection is though two switchports TengigabitEthernet (10GBSR))
When I run "show cdp nei detail" in the C4500, I got an IP 10.1.1.1 for the C6500, but this device has not that IP address.
When I run the command in the C6500, I got the right IP address for the C4500.
The "show version" for both devices is:
-------------
-------------
For the C6500:
Cisco Internetwork Operating System Software
IOS (tm) s72033_rp Software (s72033_rp-ENTSERVICESK9_WAN-M), Version 12.2(18)SXF6, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by cisco Systems, Inc.
Compiled Mon 18-Sep-06 23:23 by tinhuang
Image text-base: 0x40101040, data-base: 0x42D90000
ROM: System Bootstrap, Version 12.2(17r)S4, RELEASE SOFTWARE (fc1)
BOOTLDR: s72033_rp Software (s72033_rp-ENTSERVICESK9_WAN-M), Version 12.2(18)SXF6, RELEASE SOFTWARE (fc1)
::::::
cisco WS-C6506-E (R7000) processor (revision 1.1) with 458720K/65536K bytes of memory.
Processor board ID SAL104897GQ
SR71000 CPU at 600Mhz, Implementation 0x504, Rev 1.2, 512KB L2 Cache
Last reset from s/w reset
SuperLAT software (copyright 1990 by Meridian Technology Corp).
X.25 software, Version 3.0.0.
Bridging software.
TN3270 Emulation software.
1 Virtual Ethernet/IEEE 802.3 interface
50 Gigabit Ethernet/IEEE 802.3 interfaces
4 Ten Gigabit Ethernet/IEEE 802.3 interfaces
1917K bytes of non-volatile configuration memory.
8192K bytes of packet buffer memory.
65536K bytes of Flash internal SIMM (Sector size 512K).
Configuration register is 0x2102
For the C4500:
Cisco IOS Software, Catalyst 4500 L3 Switch Software (cat4500-ENTSERVICESK9-M), Version 12.2(31)SGA, RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 08-Sep-06 10:13 by ccai
Image text-base: 0x10000000, data-base: 0x118F6934
ROM: 12.2(31r)SGA
Pod Revision 14, Force Revision 34, Tie Revision 32
:::::
cisco WS-C4507R (MPC8540) processor (revision 11) with 524288K bytes of memory.
Processor board ID FOX103901JS
MPC8540 CPU at 800Mhz, Supervisor V-10GE
Last reset from PowerUp
3 Virtual Ethernet interfaces
100 Gigabit Ethernet interfaces
2 Ten Gigabit Ethernet interfaces
511K bytes of non-volatile configuration memory.
Configuration register is 0x2101
------------
------------
Any idea about what's the problem?
Thanks very much.
Solved! Go to Solution.
12-28-2011 11:50 PM
Did you confirm that there is no IP configure with any interface? otherwise just confirm it by using "show IP interface brief" command
12-28-2011 12:12 PM
Just curious, not related, but why is the config register set to :
Configuration register is 0x2101
12-28-2011 12:13 PM
Hi,
Can you post "sh cdp nei det" from both devices?
12-28-2011 11:13 PM
Hi,
These are the outputs for the command in both devices:
:::::::::::
.- For the C4500:
C4K5-TVT-02#sho cdp nei det
-------------------------
Device ID: C6K5-IAMTVT-02
Entry address(es):
IP address: 10.1.1.1
Platform: cisco WS-C6506-E, Capabilities: Router Switch IGMP
Interface: TenGigabitEthernet1/1, Port ID (outgoing port): TenGigabitEthernet4/1
Holdtime : 123 sec
Version :
Cisco Internetwork Operating System Software
IOS (tm) s72033_rp Software (s72033_rp-ENTSERVICESK9_WAN-M), Version 12.2(18)SXF6, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by cisco Systems, Inc.
Compiled Mon 18-Sep-06 23:23 by tinhuang
advertisement version: 2
VTP Management Domain: ''
Native VLAN: 1
Duplex: full
Management address(es):
Unidirectional Mode: off
-------------------------
:::::::
.- For the C6500:
C6K5-IAMTVT-02>sho cdp nei det
-------------------------
Device ID: C4K5-TVT-02
Entry address(es):
IP address: 10.99.193.12
Platform: cisco WS-C4507R, Capabilities: Switch IGMP
Interface: TenGigabitEthernet4/1, Port ID (outgoing port): TenGigabitEthernet1/1
Holdtime : 176 sec
Version :
Cisco IOS Software, Catalyst 4500 L3 Switch Software (cat4500-ENTSERVICESK9-M), Version 12.2(31)SGA, RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 08-Sep-06 10:13 by ccai
advertisement version: 2
VTP Management Domain: 'DOMTVT'
Native VLAN: 1
Duplex: full
Unidirectional Mode: off
-------------------------
:::::::::
Thanks,
12-28-2011 11:50 PM
Did you confirm that there is no IP configure with any interface? otherwise just confirm it by using "show IP interface brief" command
12-29-2011 01:21 AM
¡¡ You were right !!
We have that IP address configured with an interface that is down:
C6K5-IAMTVT-02#sho ip interface brief
Interface IP-Address OK? Method Status Protocol
:::
GigabitEthernet5/2 10.1.1.1 YES NVRAM down down
:::
Thank you very much.
Kind Regards.
12-29-2011 01:11 AM
Hi,
Can you clear "cdp" entries on 4500 switch and check
"clear cdp table"
Thanks
Sri
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