From: subodh.rawat@wipro.com
Date: Wed Jul 25 2007 - 05:43:51 ART
Hi Wilfred,
Its not working....I tried to associate vlan3 to fa1/1. But "sh ip int
br" shows fa1/1 up,down as this port is not connected to any device or
port of remote switch.
I have even given "no keepalive" on int fa1/1
Any other suggestion pls.
Regards
Subodh
________________________________
From: wilfred d'souza [mailto:wilfred_thegr8@yahoo.co.in]
Sent: Wednesday, July 25, 2007 12:16 PM
To: Subodh Singh Rawat (WT01 - TELECOM SERVICE PROVIDER);
ccielab@groupstudy.com
Subject: Re: Basic switching trunking question..please answer
Hello Subodh,
Try assigning the Vlans to any ethernet interface on both the switches
and then try pinging...
Let me know if it works
Regards,
Wilfred
subodh.rawat@wipro.com wrote:
Hi Champs,
A basic switching problem I am facing. Please see the diagram
below:
--- f1/7 f1/7 ---
|sw1|--------------------------------|sw2|
--- dot1Q Trunk ---
Switch 1 is VTp Server with domain CISCO
Switch 2 is VTP Client with domain CISCO
port f1/7 is configured as Dot1q encapsulation on both the
switches.
Only one VLAN, i.e. VLAN 3 is added on Sw1 and Same is reflected
in Sw2
too when I see "show vtp status"
and "show vlan brief" command. Please note that this VLAn is not
associated with any physical interface of switch.
When I see "sh int fa1/7 trunk" on both the switches, it shows
as
trunking with dot1q encapsulation.
IP address of VLAn 3 on SW1 is 3.3.3.1/24 while on sw2 is
3.3.3.2/24.
"sh ip int br" also shows up,up for fa1/7 and vlan 3.
I am not able to ping 3.3.3.1 from sw2 and 3.3.3.2 from sw1.
However, I
can ping Ip of own switch, i.e. 3.3.3.2 from sw2 and 3.3.3.1
from sw1.
Can somebody tell me what is wrong with my configuration?
Another good thing is that, when I see "show cdp entry *" from
either
switches, it shows information about other switch. e.g. when I
see "show
cdp entry *" from sw1, it shows IP address of 3.3.3.2 (of sw2)
in its
CDP database. It means layer 2 is working perfect and trunking
is also
perfect. Trunking is working fine can be verified from the
result that
VLAN 3 is present on sw2 which is VTP client for CISCO VTP
domain.
I am not sure why I am not able to ping VLAN 3 IP address of
each other
switches.
My configuration is below:
Sw1
interface FastEthernet1/7
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface Vlan3
ip address 3.3.3.1 255.255.255.0
Sw2
interface FastEthernet1/7
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface Vlan3
ip address 3.3.3.2 255.255.255.0
CDP output:
sw1#sh cdp entry *
-------------------------
Device ID: sw2
Entry address(es):
IP address: 3.3.3.2
Platform: Cisco 3640, Capabilities: Router Switch IGMP
Interface: FastEthernet1/7, Port ID (outgoing port):
FastEthernet1/7
Holdtime : 128 sec
Version :
Cisco IOS Software, 3600 Software (C3640-IS-M), Version 12.4(8),
RELEASE
SOFTWAR
E (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Mon 15-May-06 16:27 by prod_rel_team
advertisement version: 2
VTP Management Domain: 'cisco'
Duplex: full
Regards
Subodh
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