[e-nsp] Problem with MST cisco and extreme switches

[Roger Wiklund]

Hey

Stupid question maybe, but why dont you use EAPS? You can use it with 
non-eaps-devices.

Sorry, I don´t have an answer to you question, are you sure it´s a STP 
problem? And not some trunk/native vlan problem. I know i´ve had 
some problems with Ciscos bloody native VLAN.

//Roger

On Tue, 12 Dec 2006, Ramón Alvarez Rayo wrote:

>
> John,
>
> Thanks, but i have some questions:
>
> a. how long time take to recover from a link fail using this scheme?
> b. I did the changes and it is not working, it seems that stpd is working
> but I can´t ping between switches using vlan 500 interface. Any ideay why is
> it?
>
> Here is the config:
>
> enable stpd ALFA1 rapid-root-failover
> configure stpd ALFA1 tag 500
> configure stpd ALFA1 mode dot1w
> configure stpd ALFA1 port mode pvst-plus 49 configure stpd ALFA1 port
> link-type point-to-point 49 configure stpd ALFA1 port mode pvst-plus 50
> configure stpd ALFA1 port link-type point-to-point 50 enable stpd ALFA1
>
> KNITWEAR:9 # show stpd ALFA1
> Stpd: ALFA1             Stp: ENABLED            Number of Ports: 2
> Rapid Root Failover: Enabled
> Operational Mode: 802.1W
> 802.1Q Tag: 500
> Ports: 49(KNITWEAR-HMILIT),50(KNITWEAR-ALFANU)
> Active Vlans:  BACKBONE
> Bridge Priority: 32768
> BridgeID:               80:00:00:04:96:22:cf:60
> Designated root:        80:00:00:04:96:22:cf:60
> RootPathCost: 0         Root Port: ----
> MaxAge: 20s             HelloTime: 2s           ForwardDelay: 15s
> CfgBrMaxAge: 20s        CfgBrHelloTime: 2s      CfgBrForwardDelay: 15s
> Topology Change Time: 35s                       Hold time: 1s
> Topology Change Detected: FALSE                 Topology Change: FALSE
> Number of Topology Changes: 5
> Time Since Last Topology Change: 1688s
>
> KNITWEAR:10 # show stpd ALFA1 ports detail
> Stpd: ALFA1     Port: 49(KNITWEAR-HMILIT)       PortId: 4031    Stp: ENABLED
> Path Cost: 4
> Port Mode: PVST+
> Port State: FORWARDING          Topology Change Ack: FALSE
> Port Priority: 16               Loopback Port: FALSE
> Designated Root:   80:00:00:04:96:22:cf:60      Designated Cost: 0
> Designated Bridge: 80:00:00:04:96:22:cf:60      Designated Port Id: 4031
>
>
> Partner STP version: Dot1w
> Stpd: ALFA1     Port: 50(KNITWEAR-ALFANU)       PortId: 4032    Stp: ENABLED
> Path Cost: 4
> Port Mode: PVST+
> Port State: FORWARDING          Topology Change Ack: FALSE
> Port Priority: 16               Loopback Port: FALSE
> Designated Root:   80:00:00:04:96:22:cf:60      Designated Cost: 0
> Designated Bridge: 80:00:00:04:96:22:cf:60      Designated Port Id: 4032
>
>
> Partner STP version: Dot1w
>
> THANKS,
>
>
> -----Mensaje original-----
> De: john.center at villanova.edu [mailto:john.center at villanova.edu]
> Enviado el: Martes, 12 de Diciembre de 2006 03:20 p.m.
> Para: Ramón Alvarez Rayo
> Asunto: Re: [e-nsp] Problem with MST cisco and extreme switches
>
> Hi Ramón,
>
> ExtremeWare 7.4 does not support 802.1s.  Version 7.6 supports it.  You
> could make this work with EW 7.4 if you use PVST+.  Change the cisco
> config from:
>
> 	spanning-tree mode mst
> to
> 	spanning-tree mode rapid-pvst
>
> On the extreme switch add:
>
> 	configure stpd ALFA1 port mode pvst-plus 49
> 		...
> to indicate the type of BPDU that will be seen on the port.  We do this
> & it works well.
>
> HTH
>
> 	-John
>
>
> Ramón Alvarez Rayo wrote:
>> Hello,
>>
>>
>>
>> I am closing a fibre ring with 2 extreme summit 48si/Full L3 and a cisco
>> 2960, i´m tryng to connect using MSTP but I can´t see any packets
>> between extreme switches and catalyst switch, this is the configuration:
>>
>>
>>
>> NODO 2
>>
>>
>>
>> configure vlan "BACKBONE" tag 500     # VLAN-ID=0x1f4  Global Tag 3
>>
>> configure stpd ALFA1 add vlan "BACKBONE"
>>
>> configure vlan "BACKBONE" ipaddress 10.240.0.2 255.255.255.224
>>
>> configure vlan "BACKBONE" add port 49 tagged
>>
>> configure vlan "BACKBONE" add port 50 tagged
>>
>>
>>
>> enable stpd ALFA1 rapid-root-failover
>>
>> configure stpd ALFA1 tag 500
>>
>> configure stpd ALFA1 mode dot1w
>>
>> configure stpd ALFA1 port link-type point-to-point 49
>>
>> configure stpd ALFA1 port link-type point-to-point 50
>>
>> enable stpd ALFA1
>>
>>
>>
>> NODO 3
>>
>>
>>
>> configure vlan "BACKBONE" tag 500     # VLAN-ID=0x1f4  Global Tag 3
>>
>> configure stpd ALFA1 add vlan "BACKBONE"
>>
>> configure vlan "BACKBONE" ipaddress 10.240.0.3 255.255.255.224
>>
>> configure vlan "BACKBONE" add port 49 tagged
>>
>> configure vlan "BACKBONE" add port 50 tagged
>>
>>
>>
>> enable stpd ALFA1 rapid-root-failover
>>
>> configure stpd ALFA1 tag 500
>>
>> configure stpd ALFA1 mode dot1w
>>
>> configure stpd ALFA1 port link-type point-to-point 49
>>
>> configure stpd ALFA1 port link-type point-to-point 50
>>
>> enable stpd ALFA1
>>
>>
>>
>> On cisco switch this is the configuration:
>>
>>
>>
>> spanning-tree mode mst
>>
>> spanning-tree extend system-id
>>
>> !
>>
>> spanning-tree mst configuration
>>
>>  name ALFA1
>>
>>  revision 7
>>
>>  instance 1 vlan 500
>>
>> !
>>
>> vlan internal allocation policy ascending
>>
>>
>>
>> interface GigabitEthernet0/1
>>
>>  description !!! NODO1-TO-NODO2 !!!
>>
>>  switchport trunk native vlan 500
>>
>>  switchport trunk allowed vlan 500
>>
>>  switchport mode trunk
>>
>>  switchport nonegotiate
>>
>>  spanning-tree link-type point-to-point
>>
>> !
>>
>> interface GigabitEthernet0/2
>>
>>  description !!! NODO1-TO-NODO3 !!!
>>
>>  switchport trunk native vlan 500
>>
>>  switchport trunk allowed vlan 500
>>
>>  switchport mode trunk
>>
>>  switchport nonegotiate
>>
>>  spanning-tree link-type point-to-point
>>
>>
>>
>> interface Vlan500
>>
>>  ip address 10.240.0.1 255.255.255.224
>>
>>
>>
>> Extreme Version: Image : Extremeware  Version 7.4.4.9
>>
>> Cisco Catalyst: Version 12.2(25)SEE2
>>
>>
>>
>> Thanks,
>>
>>
>>
>>
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> extreme-nsp mailing list
>> extreme-nsp at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/extreme-nsp
> -- 
> John Center
> Villanova University
>
>
>
>
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