So I'm configuring G.8032 between a few switches in my lab and using CFM MEPs to monitor the links.
The MAs don't all belong to one single domain, I'm using a different one between two of the switches. It looks like this:
I think it works ok. If I shut down a link in the ring, Switch2 unblocks the RPL port. But my lab is quite limited and I've read in multiple places that it's recommended to keep the domain consistent. But I don't know if it is neccessary.
Here is the setup on Switch2 the RPL owner:
LAB-ME3600-SWITCH02#sh ethernet ring g8032 configuration
Ethernet ring RING1
Port0: GigabitEthernet0/2 (Monitor: Service Instance 6)
Port1: GigabitEthernet0/1 (Monitor: Service Instance 5)
Exclusion-list VLAN IDs:
Open-ring: no
Instance 1
Description:
Profile: PROFILE1
RPL: port0 RPL Owner
Inclusion-list VLAN IDs: 5-6,10,100-200
APS channel
Level: 2
Port0: Service Instance 6
Port1: Service Instance 5
State: configuration resolved
LAB-ME3600-SWITCH02#sh ethernet cfm maintenance-points remote
--------------------------------------------------------------------------------
MPID Domain Name MacAddress IfSt PtSt
Lvl Domain ID Ingress
RDI MA Name Type Id SrvcInst
EVC Name Age
Local MEP Info
--------------------------------------------------------------------------------
12 DOMAIN1 6886.a798.8e01 Up Up
5 DOMAIN1 Gi0/1
- SERVICE1 BD-V 5 5
EVC1 0s
MPID: 21 Domain: DOMAIN1 MA: SERVICE1
32 DOMAIN2 a418.7556.e581 Up Up
5 DOMAIN2 Gi0/2
- SERVICE1 BD-V 6 6
EVC2 0s
MPID: 23 Domain: DOMAIN2 MA: SERVICE1
Total Remote MEPs: 2
LAB-ME3600-SWITCH02#Here is the G8032 state. With the RPL blocking as expected:
LAB-ME3600-SWITCH02#show ethernet ring g8032 status
Ethernet ring RING1 instance 1 is RPL Owner node in Idle State
Port0: GigabitEthernet0/2 (Monitor: Service Instance 6)
APS-Channel: GigabitEthernet0/2
Status: RPL, blocked <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
Remote R-APS NodeId: 0000.0000.0000, BPR: 0
Port1: GigabitEthernet0/1 (Monitor: Service Instance 5)
APS-Channel: GigabitEthernet0/1
Status: Non-RPL
Remote R-APS NodeId: 0000.0000.0000, BPR: 0
APS Level: 2
Profile: PROFILE1
WTR interval: 1 minutes
Guard interval: 500 milliseconds
HoldOffTimer: 0 seconds
Revertive mode
LAB-ME3600-SWITCH02#Now we shutdown a link elsewhere:
LAB-ME3600-SWITCH01(config)#int gigabitEthernet 0/2
LAB-ME3600-SWITCH01(config-if)#shut
LAB-ME3600-SWITCH01(config-if)#The RPL port is unblocked (not that the keyword blocked has gone):
LAB-ME3600-SWITCH02#sh ethernet ring g8032 status
Ethernet ring RING1 instance 1 is RPL Owner node in Protection State
Port0: GigabitEthernet0/2 (Monitor: Service Instance 6)
APS-Channel: GigabitEthernet0/2
Status: RPL <<<<<<<<<<<<<<<<< No longer blocked
Remote R-APS NodeId: a418.7556.e580, BPR: 0
Port1: GigabitEthernet0/1 (Monitor: Service Instance 5)
APS-Channel: GigabitEthernet0/1
Status: Non-RPL
Remote R-APS NodeId: 6886.a798.8e00, BPR: 1
APS Level: 2
Profile: PROFILE1
WTR interval: 1 minutes
Guard interval: 500 milliseconds
HoldOffTimer: 0 seconds
Revertive mode
LAB-ME3600-SWITCH02#The logs show it was unblocking:
Mar 28 20:59:08.827: EVT: Unblocking port0:GigabitEthernet0/2 and Unblocking(flush) port1:GigabitEthernet0/1 for ring RING1, instance 1
Mar 28 20:59:08.827: CTRL-MGR: Send aps update: Sending update for GigabitEthernet0/2 bd_id 6 efp_id 6 state forwardingSo it looks like it is working with different domains, but then I see things like this is I look at my MEPs (note the Unkn under PtSt)
LAB-ME3600-SWITCH03#sh ethernet cfm maintenance-points remote
--------------------------------------------------------------------------------
MPID Domain Name MacAddress IfSt PtSt
Lvl Domain ID Ingress
RDI MA Name Type Id SrvcInst
EVC Name Age
Local MEP Info
--------------------------------------------------------------------------------
13 DOM1 6886.a798.8e02 Up Up
5 DOM1 Gi0/2
- SERVICE1 BD-V 5 5
EVC1 0s
MPID: 31 Domain: DOM1 MA: SERVICE1
23 S1 006c.bcfa.cf82 Up Unkn <<<<<<<<
5 S1 Gi0/1
- SERVICE1 BD-V 6 6
EVC2 0s
MPID: 32 Domain: S1 MA: SERVICE1
Total Remote MEPs: 2This is from the neighbor node Switch3 and I'm not sure what it means.
Can someone advise if this is normal behaviour. Or could my use of different domains be causing problems that I can't see?
