help for STP

[dzoki]

Hi all,

We have in one building Alcatel-Lucent OS6360-P48-EU and another building Brocade VDX. Brocade is core switch and configuration is :

interface Port-channel 300
vlag ignore-split
speed 1000
description Alcatel_OS6360 (10.10.10.1)
switchport
switchport mode trunk
switchport trunk allowed vlan add 1,69,3050,3051,3052
no switchport trunk tag native-vlan
spanning-tree bpdu-mac 0100.0ccc.cccd
no spanning-tree shutdown
no shutdown

on Alcatel OS6360-P48-EU switch is like this:

linkagg lacp agg 1 size 2 admin-state enable
linkagg lacp agg 1 name "BrocadeVDX"
linkagg lacp agg 1 actor admin-key 1
linkagg lacp port 1/1/49 actor admin-key 1
linkagg lacp port 1/1/50 actor admin-key 1

spantree pvst+compatibility enable
spantree vlan 1 admin-state disable
spantree vlan 69 admin-state disable
spantree vlan 69 bpdu-switching enable
spantree vlan 3050 admin-state disable
spantree vlan 3051 admin-state disable
spantree vlan 3052 admin-state disable

When i turn on STP on evey VLAN, devices behind switch become inaccessible. Can anyone help me how to turn STP and devices beeing available?
Thank you.

[silvio]

which protocoll does the brocade use: RSTP (802.1w) or MSTP (802.1s). If RSTP: in flat or pvst+ mode?
regards
Silvio

[dzoki]

@silvio: Brocade use spanning-tree rpvst , bridge-priority 0.

[silvio]

Hi,
I don't know rpvst- this isn't a standard protocoll (IEEE). Maybe it is proprieter from this vendor (similar to ALE 1x1/perVlan)? It sounds like rapid per vlan stp. Is it compatible with cisco pvst+.

[dzoki]

@silvio: yes it is compatible with cisco pvst+ and work fine.

[silvio]

than try the following commands (global and at the port to brocade)

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bridge mode 1x1 pvst+ enable
bridge port 1/1 pvst+ enable

If you change the priority (not necessary if the brocade is the root with prio 0) than use multiple of 4096.
F.e for vlan 69:

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bridge priority 1x1 69 priority 8192

don't use bpdu-switching:

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spantree vlan 69 bpdu-switching disable

If this doesn't work, than check the output (f.e. for vlan 69):

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show spanntree 69

best regards
Silvio