My network has a 4507R at the core with 3750G's and 3560G's configured for trunking using 802.1q. Trunking works on all switches except for a newly configured 2960G. I configured the 2960G exactly like my other switches with the exception of the encapsulation command for 802.1q because they only support 802.1q. If I go to my 4507 and do a "sh cdp nei det" I can see the 2960G but it shows that no IP addresses are configured. If I do the same command on the 2960G I can see the 4507 but I cannot telnet to its IP address. The management vlan is 50 which shows as being up everywhere except for the 2960G. I am pasting parts of my config here in the hopes that I can get help. Also, the VTP mode on the 4507 is set to transparent.
CONFIG FROM WORKING 3560G
interface GigabitEthernet0/52 switchport trunk encapsulation dot1q switchport trunk native vlan 50 switchport mode trunk ! interface Vlan1 no ip address shutdown ! interface Vlan50 ip address 192.168.8.15 255.255.248.0
CONFIG FROM NON-WORKING 2960G inteface GigabitEthernet0/48 switchport trunk native vlan 50 switchport mode trunk ! interface Vlan50 ip address 192.168.8.25 255.255.248.0 no ip route-cache
RESULTS OF "SH CDP NEI DET" ON MY 4507 for non-working switch Device ID: HSB1 Entry address(es): IP address: 0.0.0.0 Platform: cisco WS-C2960G-48TC-L, Capabilities: Switch IGMP Interface: GigabitEthernet5/2, Port ID (outgoing port): GigabitEthernet0/48 Holdtime : 137 sec
Version : Cisco IOS Software, C2960 Software (C2960-LANBASE-M), Version12.2(25)SEE2, RELE ASE SOFTWARE (fc1) Copyright (c) 1986-2006 by Cisco Systems, Inc. Compiled Fri 28-Jul-06 04:33 by yenanh
advertisement version: 2 Protocol Hello: OUI=0x00000C, Protocol ID=0x0112; payload len=27, value=00000000FFFFFFFF010221FF000000000000001A6C2FA280FF0000 VTP Management Domain: 'MYNET' Native VLAN: 50 Duplex: full Management address(es): IP address: 0.0.0.0 Unidirectional Mode: off
Thanks for your help