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How to configure RSTP and RRPP on the same switch ?

Arthis
Occasional Advisor

How to configure RSTP and RRPP on the same switch ?

Hi,

 

I have another question about RSTP and RRPP

 

RRPP -> the data vlans are 2, 4 and 6   (Instance 1   =  2,4,6)

 

some interface-vlans are configured on the switches SWA, SWB and SWC.

Some old Cisco switches (with RSTP) should be kept and connected on HP.

 

1-  I'd like to configure RSTP on SWA, SWB and SWC. Unfortunately, we can't specify the vlans in the RSTP configuration.
 

Can SWA be  Root Bridge for all vlans (even the protected vlans) ?

 

IF yes, shoud I configure SWA, SWB and SWC as Root Bridge    or   SWA as Root Primary and SWB as Root Secondary ?

 

 

Thanks,

 

Herve

 

Drawing2.jpg

 

3 REPLIES
manuel.bitzi
Trusted Contributor

Re: How to configure RSTP and RRPP on the same switch ?

Hi Arthis

 

You have to disable STP on all RRPP ports (RRPP looks for a non-looping ring). That results to a STP domain for each location. Each location will have a root (eg. SWA, SWB and SWC)

 

 

br

Manuel

H3CSE, MASE Network Infrastructure [2011], Switzerland
Peter_Debruyne
Honored Contributor

Re: How to configure RSTP and RRPP on the same switch ?

The RSTP and RRPP configs are independent of each other.

As such, the protected vlan concept only applies to the RRPP ring(s) which you have configured.

 

RSTP is not vlan aware, so will just assign a status (fw or blk) at the port level (for all vlans which are defined on the port).

Arthis
Occasional Advisor

Re: How to configure RSTP and RRPP on the same switch ?

Hi,

 

Thanks for your answer.

 

That's a bit confusing because one instance (MSTP) must be created for the Protected Vlans (RRPP) and this same instance can be used for RSTP.

 

Anyway. What I've done on SWA, SWB and SWC:

- Instance 1    defines the protected vlans (RRPP)

- RSTP configuration: Each switch is the Root Primary for instance 1  and Root Primary for instance 0.

 

stp region-configuration
 instance 1 vlan 2 4 6               ----> defines the protected vlans
 active region-configuration

#

rrpp domain 1
 control-vlan 11
 protected-vlan reference-instance 1
 ring 1 node-mode transit primary-port GigabitEthernet 1/2/0/1 secondary-port GigabitEthernet2/2/0/1 level 0
 ring 1 enable

 
#
 stp mode rstp
 stp instance 0 root primary                

 stp instance 1 root primary
 stp enable

 

I think that's correct.