From: Mounir Mohamed (mounir.mohamed@gmail.com)
Date: Wed Jul 25 2007 - 09:38:32 ART
Am totally aggree witht the guy because when i test the same configurations
on dynamips with only one module everything working fine.
On 7/25/07, Ben Holko <ben.holko@datacom.com.au> wrote:
>
> I lost hours on the "two switch modules" problem in Dynamips - drop your
> Dynamips config to one switching module per router
>
>
>
> Ben Holko
> Snr. Network Architect - Datacom Systems - L2 190 City Road South
> Melbourne Victoria 3205, Australia
> Email: ben.holko@datacom.com.au - Ph: +61-3-9626 9627 - fax: +61
> -3-9626 9699 - Mob: +61-412 484 456
>
>
> ________________________________
>
> From: nobody@groupstudy.com on behalf of subodh.rawat@wipro.com
> Sent: Wed 7/25/2007 8:22 PM
> To: elektronikadam@yahoo.com; ccielab@groupstudy.com
> Subject: RE: Basic switching trunking question..please answer
>
>
>
> 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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-- Best Reagrds, Mounir Mohamed
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