From: subodh.rawat@wipro.com
Date: Wed Jul 25 2007 - 07:22:57 ART
I am using curently two. I think this might be one of the culprit. Will
share with u tomorrow.
But still, if this the root cause of problem, then does any one has
solution for it?
Regards
Subodh
-----Original Message-----
From: ahmet seckin [mailto:elektronikadam@yahoo.com]
Sent: Wednesday, July 25, 2007 3:44 PM
To: Subodh Singh Rawat (WT01 - TELECOM SERVICE PROVIDER);
ccielab@groupstudy.com
Subject: Re: Basic switching trunking question..please answer
Hi Subodh,
How many NM-16ESW did you use on your dynamips routers? If you use 2 of
them on a router, dynamips will have problems with vlans, so try it with
using only one.
I hope this helps.
Regards,
Kerim
----- Original Message ----
From: "subodh.rawat@wipro.com" <subodh.rawat@wipro.com>
To: djerk@djerk.nl; tohsoon28@gmail.com
Cc: ccielab@groupstudy.com
Sent: Wednesday, July 25, 2007 9:59:50 AM
Subject: RE: Basic switching trunking question..please answer
Few more outputs:
sw1#sh spanning-tree vlan 3
VLAN3 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 32768, address cc06.0df4.0001
Configured hello time 2, max age 20, forward delay 15
We are the root of the spanning tree
Topology change flag not set, detected flag not set
Number of topology changes 1 last change occurred 00:59:20 ago
from FastEthernet1/7
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 1, topology change 0, notification 0, aging 300
Port 48 (FastEthernet1/7) of VLAN3 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.48.
Designated root has priority 32768, address cc06.0df4.0001
Designated bridge has priority 32768, address cc06.0df4.0001
Designated port id is 128.48, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
BPDU: sent 1784, received 0
sw2#sh spanning-tree vl 3
VLAN3 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 32768, address cc07.0580.0001
Configured hello time 2, max age 20, forward delay 15
Current root has priority 32768, address cc06.0df4.0001
Root port is 48 (FastEthernet1/7), cost of root path is 19
Topology change flag not set, detected flag not set
Number of topology changes 0 last change occurred 00:58:48 ago
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 0, topology change 0, notification 0, aging 300
Port 48 (FastEthernet1/7) of VLAN3 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.48.
Designated root has priority 32768, address cc06.0df4.0001
Designated bridge has priority 32768, address cc06.0df4.0001
Designated port id is 128.48, designated path cost 0
Timers: message age 2, forward delay 0, hold 0
Number of transitions to forwarding state: 1
BPDU: sent 0, received 1752
sw1#sh ip arp vlan 3
Protocol Address Age (min) Hardware Addr Type Interface
Internet 3.3.3.2 0 Incomplete ARPA
Internet 3.3.3.1 - cc06.0df4.0000 ARPA Vlan3
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of Toh Soon, Lim
> Sent: woensdag 25 juli 2007 7:34
> To: subodh.rawat@wipro.com
> Cc: ccielab@groupstudy.com
> Subject: Re: Basic switching trunking question..please answer
>
> Hi Subodh,
>
> Your configs look fine to me. This simple setup should work without
> issue.
>
> Anyway, can you provide us outputs of the following commands:
>
> - sh ip arp vl 3
> - sh spann vl 3
> - sh int status
> - sh int trunk
>
>
> Thank you.
>
> B.Rgds,
> Lim TS
>
>
> On 7/25/07, subodh.rawat@wipro.com <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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