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07-12-2016 04:36 AM
07-12-2016 04:36 AM
Simplest option to designate STP route bridege.
Our network has never properly had STP configured.
As it stands we have a mix of Procurve and Comware (the new core) . I am not overly familiar with the concept of MST/IST although I have used RSTP previously.
Our route bridge is an old 3500YL that has the lowest MAC address and the same Bridge ID as all the other switches. This switch sits at our Disaster site 5 miles away down a 1GB Leased line...
I want to do the simplest work possible to make the Comware7 5700FF at head office the route bridge for the network.
I want to disable STP across the 1GB LAN as it makes no sense having it.
Our actual present topology has no redundant links anyway.
Cheers
Rob
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07-12-2016 08:32 AM
07-12-2016 08:32 AM
Re: Simplest option to designate STP route bridege.
First: What version of STP you are running in your environment (STP, RSTP / MSTP)?
To configure 5700FF as root STP topology, just type the following:
global enable stp -> enabling STP on the switch stp mode rstp ---> setting the version of STP stp root primary ---> Setting the switch to be the root of the STP topology.
After this setting, the 5700 will have the information bridge ID like: 0.4667-870a-0100
For 1GB ports, you can configure them as "edge-port".
After making these settings, enter here the command output:
dis stp brief
ATP FLEXNETWORK V3 | ACSA
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07-12-2016 08:44 AM
07-12-2016 08:44 AM
Re: Simplest option to designate STP route bridege.
I guess MSTP judging by the tow outputs.
Cheers
Rob
THE Comware Core
<SW-HO-CORE-1>disp stp
-------[CIST Global Info][Mode MSTP]-------
Bridge ID : 32768.5c8a-3842-723b
Bridge times : Hello 2s MaxAge 20s FwdDelay 15s MaxHops 20
Root ID/ERPC : 32768.0016-b96c-2380, 20038
RegRoot ID/IRPC : 32768.5c8a-3842-723b, 0
RootPort ID : 128.40
BPDU-Protection : Disabled
Bridge Config-
Digest-Snooping : Disabled
TC or TCN received : 2949
Time since last TC : 4 days 18h:41m:32s
----[Port683(Bridge-Aggregation1)][FORWARDING]----
Port protocol : Enabled
Port role : Designated Port (Boundary)
Port ID : 128.683
Port cost(Legacy) : Config=auto, Active=14
Desg.bridge/port : 32768.5c8a-3842-723b, 128.683
Port edged : Config=disabled, Active=disabled
Point-to-Point : Config=auto, Active=true
Transmit limit : 10 packets/hello-time
TC-Restriction : Disabled
Role-Restriction : Disabled
ONE OF THE PROCURVE
SW-DR-EDGE-1# show span
Multiple Spanning Tree (MST) Information
STP Enabled : Yes
Force Version : MSTP-operation
IST Mapped VLANs : 1-4094
Switch MAC Address : 0024a8-6d0200
Switch Priority : 32768
Max Age : 20
Max Hops : 20
Forward Delay : 15
Topology Change Count : 296
Time Since Last Change : 4 days
CST Root MAC Address : 0016b9-6c2380
CST Root Priority : 32768
CST Root Path Cost : 20000
CST Root Port : D23
IST Regional Root MAC Address : 0024a8-6d0200
IST Regional Root Priority : 32768
IST Regional Root Path Cost : 0
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09-06-2016 01:43 AM
09-06-2016 01:43 AM
Re: Simplest option to designate STP route bridege.
After setting both ends of the WAN link to
"STP EDGED-PORT"
and then setting the switch priotity
"STP ROOT PRIMARY" on each main switch at each site.
I expected site A to become the root for Site A, and Site B the root for Site B.
But site B "xxxxxxx:6505" is still the CIST root? And all switches now reference Site B Core.
-------[CIST Global Info][Mode MSTP]-------
Bridge ID : 0.5c8a-3842-723b
Bridge times : Hello 2s MaxAge 20s FwdDelay 15s MaxHops 20
Root ID/ERPC : 0.5c8a-3842-6505, 20
RegRoot ID/IRPC : 0.5c8a-3842-723b, 0
RootPort ID : 128.40
BPDU-Protection : Disabled
Bridge Config-
Digest-Snooping : Disabled
Root type : Primary root
TC or TCN received : 3085
Time since last TC : 0 days 13h:29m:12s
I could convert Site B to "Secondary" but was expecting the two site to now be independant...
Rob
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09-08-2016 04:34 AM - edited 09-08-2016 08:03 AM
09-08-2016 04:34 AM - edited 09-08-2016 08:03 AM
Re: Simplest option to designate STP route bridege.
I assume that you have one link between your sites that are directly connected to the switches.
To stop the switches sending BPDUs use this command on the ProCurve switch:
Switch (config)# spanning-tree <interface> bpdu-filter
Switch (config)# spanning-tree <interface> admin-edge-port
And this on the Comware:
[Switch-GigabitEthernet1/0/10]stp edged-port enable
This should prevent the switches sending BPDUs to each other on this ports. There should two seperate root switches now.
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09-08-2016 07:32 AM
09-08-2016 07:32 AM
Re: Simplest option to designate STP route bridege.
ends are comware.
I tried "bpdu-drop any" a couple of weeks back and that just stopped all trraffic ( it's a hybrid L2/L3 link)
Last night I set the Disaster site as priority secondary and that's more or less achived what's needed.
Rob