How do you configure MSTP on HP Comware via CLI? ⋆ Network Design Implementation Consultation

How do you configure MSTP on HP Comware via CLI?

We have three HP Comware switches in a triangle with each device being at default configuration after enabling Multi-Instance Spanning Tree (MSTP). We’ll be optimizing the network by adding load-balancing for MSTP and across 20 vlans and link aggregation.

A quick overview of the Layer 2 configuration of the network

[5800A]display lldp neighbor-information list
System Name  Local Interface  Chassis ID      Port ID
7500         GE1/0/1          3822-d69c-fbd0  GigabitEthernet2/0/25
5800B        XGE1/0/27        3822-d6e5-9a1f  Ten-GigabitEthernet1/0/27
5800B        XGE1/0/28        3822-d6e5-9a1f  Ten-GigabitEthernet1/0/28
[5800B]display lldp neighbor-information list
System Name  Local Interface  Chassis ID      Port ID
7500         GE1/0/1          3822-d69c-fbd0  GigabitEthernet2/0/26
5800A        XGE1/0/27        3822-d6e5-85df  Ten-GigabitEthernet1/0/27
5800A        XGE1/0/28        3822-d6e5-85df  Ten-GigabitEthernet1/0/28
[7500]dis lldp nei list
System Name  Local Interface  Chassis ID      Port ID
5800A        GE2/0/25         3822-d6e5-85df  GigabitEthernet1/0/1
5800B        GE2/0/26         3822-d6e5-9a1f  GigabitEthernet1/0/1

<5800A>dis stp brief
 MSTID Port                 Role  STP State  Protection
   0   Bridge-Aggregation1  DESI  FORWARDING NONE
   0   GigabitEthernet1/0/1 ROOT  FORWARDING NONE

<5800B>dis stp brief
 MSTID Port                 Role STP State  Protection
   0   Bridge-Aggregation1  ALTE DISCARDING NONE
   0   GigabitEthernet1/0/1 ROOT FORWARDING NONE

[7500]dis stp brief
 MSTID Port                  Role STP State  Protection
   0   GigabitEthernet2/0/25 DESI FORWARDING NONE
   0   GigabitEthernet2/0/26 DESI FORWARDING NONE

<5800A>dis stp region-configuration
 Oper configuration
 Format selector      :0
 Region name          :3822d6e585df
 Revision level       :0
 Configuration digest :0xac36177f50283cd4b83821d8ab26de62
 Instance Vlans Mapped
 0        1 to 4094

[5800B]dis stp region-configuration
 Oper configuration
 Format selector      :0
 Region name          :3822d6e59a1f
 Revision level       :0
 Configuration digest :0xac36177f50283cd4b83821d8ab26de62
 Instance Vlans Mapped
 0        1 to 4094

[7500]dis stp region-configuration
 Oper configuration
 Format selector      :0
 Region name          :3822d69cfbd0
 Revision level       :0
 Configuration digest :0xac36177f50283cd4b83821d8ab26de62
 Instance Vlans Mapped
 0        1 to 4094

Configuring MSTP on the switches, not the configuration is the same to maintain consistency.

stp enable
 stp region-configuration
 region-name Comware
 revision-level 1
 instance 1 vlan 1 to 10
 instance 2 vlan 11 to 20
 active region-configuration

Our goal is to have a single region configured with load balancing occuring between instances to allow all links to be utilized. 5800A will be handling the instances 0,1 and 5800B will be the root for instance 2. The link aggregation is used by both instances (colored green and yellow) but each 5800 is using the link to the 7500 for only it’s VLAN instances due to the blocking by MSTP per instance.

Configuring the 5800A

<5800A>sys
System View: return to User View with Ctrl+Z.
[5800A]stp reg
[5800A]stp region-configuration
[5800A-mst-region]region Comware
[5800A-mst-region]rev
[5800A-mst-region]revision-level 1
[5800A-mst-region]instance 1 vlan 1 to 10
[5800A-mst-region]instance 2 vlan 11 to 20
[5800A-mst-region]active region-configuration
[5800A-mst-region]dis this
#
 stp enable
stp region-configuration
 region-name Comware
 revision-level 1
 instance 1 vlan 1 to 10
 instance 2 vlan 11 to 20
 active region-configuration
#
return

[5800A-mst-region]dis stp region-configuration
 Oper configuration
 Format selector      :0
 Region name          :Comware
 Revision level       :1
 Configuration digest :0x5f762d9a46311effb7a488a3267fca9f
 Instance Vlans Mapped
 0        21 to 4094
 1        1 to 10
 2        11 to 20

Configure 5800A as the root for instances 0 and 1, with backup for instance 2.

[5800A]stp instance 1 root pri
[5800A]stp instance 1 root primary
[5800A]stp instance 0 root prim
[5800A]stp instance 2 root sec

[5800A]dis stp instance 0
-------[CIST Global Info][Mode MSTP]-------
CIST Bridge :0.3822-d6e5-85df
Bridge Times :Hello 2s MaxAge 20s FwDly 15s MaxHop 20
CIST Root/ERPC :0.3822-d6e5-85df / 0
CIST RegRoot/IRPC :0.3822-d6e5-85df / 0
CIST RootPortId :0.0
BPDU-Protection :disabled
Bridge Config-
Digest-Snooping :disabled
CIST Root Type :PRIMARY root
TC or TCN received :49
Time since last TC :0 days 0h:0m:24s

[5800A]dis stp instance 2
-------[MSTI 2 Global Info]-------
MSTI Bridge ID :4096.3822-d6e5-85df
MSTI RegRoot/IRPC :4096.3822-d6e5-85df / 0
MSTI RootPortId :0.0
MSTI Root Type :SECONDARY root
Master Bridge :0.3822-d6e5-85df
Cost to Master :0
TC received :0

Configure trunk links between the 5800A and 7500

[5800A]int g1/0/1
[5800A-GigabitEthernet1/0/1]port link-t t
[5800A-GigabitEthernet1/0/1]port t p v all
 Please wait........................................... Done.
[5800A-GigabitEthernet1/0/1]quit

[5800A]dis stp brief
 MSTID Port Role STP State Protection
 0 Bridge-Aggregation1 DESI FORWARDING NONE
 0 GigabitEthernet1/0/1 DESI FORWARDING NONE
 1 Bridge-Aggregation1 DESI FORWARDING NONE
 1 GigabitEthernet1/0/1 DESI FORWARDING NONE

Add Vlan 2 to 20

[5800A]vlan 2 to 20
 Please wait... Done.

[5800A]dis stp brief
 MSTID Port Role STP State Protection
 0 Bridge-Aggregation1 DESI FORWARDING NONE
 0 GigabitEthernet1/0/1 DESI FORWARDING NONE
 1 Bridge-Aggregation1 DESI FORWARDING NONE
 1 GigabitEthernet1/0/1 DESI FORWARDING NONE
 2 Bridge-Aggregation1 DESI DISCARDING NONE
 2 GigabitEthernet1/0/1 DESI DISCARDING NONE

Configure 5800B

[5800B]stp region-configuration
[5800B-mst-region] region-name Comware
[5800B-mst-region] revision-level 1
[5800B-mst-region] instance 1 vlan 1 to 10
[5800B-mst-region] instance 2 vlan 11 to 20
[5800B-mst-region] active region-configuration
[5800B-mst-region]
[5800B-mst-region]quit

[5800B]dis stp region-configuration
 Oper configuration
 Format selector :0
 Region name :Comware
 Revision level :1
 Configuration digest :0x5f762d9a46311effb7a488a3267fca9f
 Instance Vlans Mapped
 0 21 to 4094
 1 1 to 10
 2 11 to 20

[5800B]dis stp instance 1
-------[MSTI 1 Global Info]-------
MSTI Bridge ID :32768.3822-d6e5-9a1f
MSTI RegRoot/IRPC :32768.3822-d69c-fbd0 / 20
MSTI RootPortId :128.1
Master Bridge :0.3822-d6e5-9a1f
Cost to Master :0
TC received :6

[5800B]dis stp region-configuration
 Oper configuration
 Format selector :0
 Region name :Comware
 Revision level :1
 Configuration digest :0x5f762d9a46311effb7a488a3267fca9f
 Instance Vlans Mapped
 0 21 to 4094
 1 1 to 10
 2 11 to 20
[5800B]dis curr | i stp
 stp instance 0 root primary
 stp enable
stp region-configuration

[5800B]stp instance 2 root primary
[5800B]stp instance 0 root secondary
[5800B]stp instance 1 root secondary
[5800B]dis stp instance 0
-------[CIST Global Info][Mode MSTP]-------
CIST Bridge :4096.3822-d6e5-9a1f
Bridge Times :Hello 2s MaxAge 20s FwDly 15s MaxHop 20
CIST Root/ERPC :0.3822-d6e5-85df / 0
CIST RegRoot/IRPC :0.3822-d6e5-85df / 1
CIST RootPortId :128.891
BPDU-Protection :disabled
Bridge Config-
Digest-Snooping :disabled
CIST Root Type :SECONDARY root
TC or TCN received :50
Time since last TC :0 days 0h:1m:7s

[5800B]dis stp instance 1
-------[MSTI 1 Global Info]-------
MSTI Bridge ID :4096.3822-d6e5-9a1f
MSTI RegRoot/IRPC :0.3822-d6e5-85df / 1
MSTI RootPortId :128.891
MSTI Root Type :SECONDARY root
Master Bridge :0.3822-d6e5-85df
Cost to Master :1
TC received :11

[5800B]dis stp instance 2
-------[MSTI 2 Global Info]-------
MSTI Bridge ID :0.3822-d6e5-9a1f
MSTI RegRoot/IRPC :0.3822-d6e5-9a1f / 0
MSTI RootPortId :0.0
MSTI Root Type :PRIMARY root
Master Bridge :0.3822-d6e5-85df
Cost to Master :1
TC received :0

[5800B]int g1/0/1
[5800B-GigabitEthernet1/0/1]port link-t trunk
[5800B-GigabitEthernet1/0/1]dis this
#
interface GigabitEthernet1/0/1
 port link-mode bridge
 port link-type trunk
 port trunk permit vlan 1
#
return
[5800B-GigabitEthernet1/0/1]port trunk per vl all
 Please wait........................................... Done.
[5800B-GigabitEthernet1/0/1]quit
[5800B]dis stp instance 2
-------[MSTI 2 Global Info]-------
MSTI Bridge ID :0.3822-d6e5-9a1f
MSTI RegRoot/IRPC :0.3822-d6e5-9a1f / 0
MSTI RootPortId :0.0
MSTI Root Type :PRIMARY root
Master Bridge :0.3822-d6e5-85df
Cost to Master :1
TC received :0

[5800B]dis stp brief
 MSTID Port Role STP State Protection
 0 Bridge-Aggregation1 ROOT FORWARDING NONE
 0 GigabitEthernet1/0/1 DESI FORWARDING NONE
 1 Bridge-Aggregation1 ROOT FORWARDING NONE
 1 GigabitEthernet1/0/1 DESI FORWARDING NONE
[5800B]vlan 11 to 20
 Please wait... Done.
[5800B]

[5800B]dis stp instance 2
-------[MSTI 2 Global Info]-------
MSTI Bridge ID :0.3822-d6e5-9a1f
MSTI RegRoot/IRPC :0.3822-d6e5-9a1f / 0
MSTI RootPortId :0.0
MSTI Root Type :PRIMARY root
Master Bridge :0.3822-d6e5-85df
Cost to Master :1
TC received :2

[5800B]dis stp brief
 MSTID Port Role STP State Protection
 0 Bridge-Aggregation1 ROOT FORWARDING NONE
 0 GigabitEthernet1/0/1 DESI FORWARDING NONE
 1 Bridge-Aggregation1 ROOT FORWARDING NONE
 1 GigabitEthernet1/0/1 DESI FORWARDING NONE
 2 Bridge-Aggregation1 DESI FORWARDING NONE
 2 GigabitEthernet1/0/1 DESI LEARNING NONE

Configure 7500

[7500]stp region-configuration
[7500-mst-region] region-name Comware
[7500-mst-region] revision-level 1
[7500-mst-region] instance 1 vlan 1 to 10
[7500-mst-region] instance 2 vlan 11 to 20
[7500-mst-region] active region-configuration

[7500-mst-region]dis stp reg
 Oper configuration
 Format selector :0
 Region name :Comware
 Revision level :1
 Configuration digest :0x5f762d9a46311effb7a488a3267fca9f
 Instance Vlans Mapped
 0 21 to 4094
 1 1 to 10
 2 11 to 20

[7500]port-group manual Trunk
[7500-port-group-manual-Trunk]group-member g2/0/25 to g2/0/26
[7500-port-group-manual-Trunk]port link-t t
[7500-port-group-manual-Trunk]port trunk p v all
 Configuring GigabitEthernet2/0/25.......................................
.... Done.
 Configuring GigabitEthernet2/0/26.......................................
.... Done.
[7500-port-group-manual-Trunk]quit
[7500]dis stp instance 0
-------[CIST Global Info][Mode MSTP]-------
CIST Bridge :32768.3822-d69c-fbd0
Bridge Times :Hello 2s MaxAge 20s FwDly 15s MaxHop 20
CIST Root/ERPC :0.3822-d6e5-85df / 0
CIST RegRoot/IRPC :0.3822-d6e5-85df / 20
CIST RootPortId :128.121
BPDU-Protection :disabled
Bridge Config-
Digest-Snooping :disabled
TC or TCN received :38
Time since last TC :0 days 0h:4m:39s

[7500]dis stp instance 1
-------[MSTI 1 Global Info]-------
MSTI Bridge ID :32768.3822-d69c-fbd0
MSTI RegRoot/IRPC :0.3822-d6e5-85df / 20
MSTI RootPortId :128.121
Master Bridge :0.3822-d6e5-85df
Cost to Master :20
TC received :14

[7500]dis stp instance 2
-------[MSTI 2 Global Info]-------
MSTI Bridge ID :32768.3822-d69c-fbd0
MSTI RegRoot/IRPC :32768.3822-d69c-fbd0 / 0
MSTI RootPortId :0.0
Master Bridge :0.3822-d6e5-85df
Cost to Master :20
TC received :0

[7500]dis stp brief
 MSTID Port Role STP State Protection
 0 GigabitEthernet2/0/25 ROOT FORWARDING NONE
 0 GigabitEthernet2/0/26 ALTE DISCARDING NONE
 1 GigabitEthernet2/0/25 ROOT FORWARDING NONE
 1 GigabitEthernet2/0/26 ALTE DISCARDING NONE

[7500]dis stp brief
 MSTID Port Role STP State Protection
 0 GigabitEthernet2/0/25 ROOT FORWARDING NONE
 0 GigabitEthernet2/0/26 ALTE DISCARDING NONE
 1 GigabitEthernet2/0/25 ROOT FORWARDING NONE
 1 GigabitEthernet2/0/26 ALTE DISCARDING NONE

[7500]vlan 11 to 20
 Please wait... Done.
[7500]dis stp brief
 MSTID Port Role STP State Protection
 0 GigabitEthernet2/0/25 ROOT FORWARDING NONE
 0 GigabitEthernet2/0/26 ALTE DISCARDING NONE
 1 GigabitEthernet2/0/25 ROOT FORWARDING NONE
 1 GigabitEthernet2/0/26 ALTE DISCARDING NONE
 2 GigabitEthernet2/0/25 ALTE DISCARDING NONE
 2 GigabitEthernet2/0/26 ROOT FORWARDING NONE
[7500]

[7500]dis stp brief
 MSTID Port Role STP State Protection
 0 GigabitEthernet2/0/25 ALTE DISCARDING NONE
 0 GigabitEthernet2/0/26 ROOT FORWARDING NONE

[7500]dis stp
-------[CIST Global Info][Mode MSTP]-------
CIST Bridge :32768.3822-d69c-fbd0
Bridge Times :Hello 2s MaxAge 20s FwDly 15s MaxHop 20
CIST Root/ERPC :0.3822-d6e5-9a1f / 20
CIST RegRoot/IRPC :32768.3822-d69c-fbd0 / 0
CIST RootPortId :128.122
BPDU-Protection :disabled
Bridge Config-
Digest-Snooping :disabled
TC or TCN received :28
Time since last TC :0 days 0h:0m:49s

We accomplished our goal of forwarding traffic on both sides of the 7500 links by mapping vlans to instances and the instances to roots across the two 5800 switches. With the 5800A switch handling root for instances 0 and 1, 5800B handling instance 2. The 7500 is no longer the root and will be blocking the vlans in instances 0,1 on port g2/0/26 and blocking vlans in instances 2 on port g2/0/25.

The green/gray and yellow colored crowns represent the root switch for the instances labelled.

###

<-PREVIOUS What is 802.1.q-2005 MSTP, Multi-Instance Spanning Tree?

NEXT-> How do you configure VRRP on Comware?

March 27, 2014 / 802.1q, Articles, HP, MSTP, Redundancy, STP, Switching, Trunking / Tags: 200, Comware, HP, HP0-Y43, Layer2, MSTP, switching, VLAN

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About the Author

Praveen Bahethi

Chief Technical Officer, Shilpa Systems
Washington D.C. Metro Area
Information Technology and Services
Driven leader looking to reduce costs and enhance revenues through the efficient and productive use of Technology Specialties: Managing Technology Teams Developing and Teaching Courseware Using a Comprehensive approach to Converged Infrastructure with insight into Technology, Costs, and People.

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