ramon.alvarez at alfanumeric
Dec 13, 2006, 12:29 PM
Post #7 of 9
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Problem with MST cisco and extreme switches
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Right now we are in testing environment, but in production the number of
vlans will grow.
Follow with the subject, when I enable rapid stp on cisco, with vlan native
1 on ports, I see a loop on the network, the cisco switchs put in fwd mode
both ports, and the extreme switches put both ports in fwd.
If I shutdown a port on cisco switch every thing is normal and I can reach
the hosts on vlan 500.
Any idea?
-----Mensaje original-----
De: Roger Wiklund [mailto:copse at xy.org]
Enviado el: Mi?rcoles, 13 de Diciembre de 2006 01:18 p.m.
Para: Ram?n Alvarez Rayo
CC: extreme-nsp at puck.nether.net
Asunto: RE: [e-nsp] Problem with MST cisco and extreme switches
Yes EAPS is propetary, but you can use it with non-eaps if you close the
ring with the same eaps-switch that started.
Why are you using tagged vlan when you only have one? Try untagged.
On Wed, 13 Dec 2006, Ram?n Alvarez Rayo wrote:
> I?m not clear about use eaps with other devices, i think it is propetary.
>
> I see stp for vlan 1 and vlan 500 but I can?t ping from extreme to cisco
> switch.
>
> Any idea?
>
> Thanks,
>
> -----Mensaje original-----
> De: Roger Wiklund [mailto:copse at xy.org]
> Enviado el: Mi?rcoles, 13 de Diciembre de 2006 02:56 a.m.
> Para: Ram?n Alvarez Rayo
> CC: extreme-nsp at puck.nether.net
> Asunto: Re: [e-nsp] Problem with MST cisco and extreme switches
>
> 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, Ram?n 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: Ram?n Alvarez Rayo
>> Asunto: Re: [e-nsp] Problem with MST cisco and extreme switches
>>
>> Hi Ram?n,
>>
>> 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
>>
>>
>> Ram?n 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
>>
>>
>>
>>
>> _______________________________________________
>> extreme-nsp mailing list
>> extreme-nsp at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/extreme-nsp
>>
>
>
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