From: Andreson Chris (cciestudy@hkbsd.com)
Date: Mon Mar 05 2007 - 04:41:01 ART
Ernesto,
You can try to type the command on all trunk see if any improvement. On my
dynamips. In case if i don't type below command. The trunk will being
struck.
sw trunk encapsulation dot1q
Rgds
Chris.
----- Original Message -----
From: <ernesto.mazuelos@gmail.com>
To: <ccielab@groupstudy.com>
Sent: Monday, March 05, 2007 3:40 AM
Subject: Help for trunking with dynamips and IEv4
> Hi,
> I don't succeed in doing a simple trunk among two SW with dynamips
>
> the trunk works well, but if ping from R1 to R2 no it works
>
> R1-----SW1-----SW2--------R2
>
> Rack1R1#ping 10.0.0.2 repeat 10
>
> Type escape sequence to abort.
> Sending 10, 100-byte ICMP Echos to 10.0.0.2, timeout is 2 seconds:
> ..........
>
> Thanks
>
>
> Config :
>
>
>
>
> Do I forget me of something?
> R1
> !
> interface FastEthernet0/0
> ip address 10.0.0.1 255.0.0.0
> speed 100
> full-duplex
> !
>
> SW1
> -----------
> interface FastEthernet1/1
> description To R1 F0/0
> switchport access vlan 3
> duplex full
> speed 100
> !
> interface FastEthernet2/3
> description To SW2 F2/3
> switchport mode trunk
> !
>
> SW2
> -----------
> !
> interface FastEthernet1/2
> description To R2 F0/0
> switchport access vlan 3
> duplex full
> speed 100
> interface FastEthernet2/3
> description To SW1 F2/3
> switchport mode trunk
> duplex full
> speed 100
> !
>
> Rack1SW1#sh int tru
>
> Port Mode Encapsulation Status Native vlan
> Fa2/3 on 802.1q trunking 1
>
> Port Vlans allowed on trunk
> Fa2/3 1-1005
>
> Port Vlans allowed and active in management domain
> Fa2/3 1-4
>
> Port Vlans in spanning tree forwarding state and not pruned
>
>
> Rack1SW2#sh int tru
>
> Port Mode Encapsulation Status Native vlan
> Fa2/3 on 802.1q trunking 1
> Fa2/4 off 802.1q not-trunking 1
> Fa2/5 off 802.1q not-trunking 1
>
> Port Vlans allowed on trunk
> Fa2/3 1-1005
> Fa2/4 none
> Fa2/5 none
>
> Port Vlans allowed and active in management domain
> Fa2/3 1-4
> Fa2/4 none
> Fa2/5 none
>
> Port Vlans in spanning tree forwarding state and not pruned
> Fa2/3 1-4
> Fa2/4 none
> Fa2/5 none
>
>
>
> SW1
> sw spa bri
> ---------
> VLAN3
> Spanning tree enabled protocol ieee
> Root ID Priority 32768
> Address cc06.0170.0002
> This bridge is the root
> Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
>
> Bridge ID Priority 32768
> Address cc06.0170.0002
> Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
> Aging Time 300
>
> Interface Designated
> Name Port ID Prio Cost Sts Cost Bridge ID
> Port ID
> -------------------- ------- ---- ----- --- ----- -------------------- -------
> FastEthernet1/1 128.42 128 19 FWD 0 32768 cc06.0170.0002
> 128.42
> FastEthernet2/3 128.84 128 19 FWD 0 32768 cc06.0170.0002
> 128.84
>
> SW2
> sh spa bri
> VLAN3
> Spanning tree enabled protocol ieee
> Root ID Priority 32768
> Address cc06.0170.0002
> Cost 19
> Port 84 (FastEthernet2/3)
> Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
>
> Bridge ID Priority 32768
> Address cc07.066c.0002
> Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
> Aging Time 300
>
> Interface Designated
> Name Port ID Prio Cost Sts Cost Bridge ID
> Port ID
> -------------------- ------- ---- ----- --- ----- -------------------- -------
> FastEthernet1/2 128.43 128 19 FWD 19 32768 cc07.066c.0002
> 128.43
> FastEthernet2/3 128.84 128 19 FWD 0 32768 cc06.0170.0002
> 128.84
>
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