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ERPS subring problem.

ERPS subring problem.

Nikolay_Chernya
New Contributor

‎11-30-2015 11:46 AM

Hi Extreme Community.We have some experience with EAPS, now trying to make some lab test with ERPS and various vendors to push ERPS in to production.

Currently we are observing following problem:
When main ring broken, subring RPL owner does not unblocks RPL port.

e1108d3aefa845b987e00b5c6797c3a2_RackMultipart20151130-4969-niih6j-erps_inline.jpg



Here is our lab.

SW1 config:
#VLANS
create vlan "MNG"
configure vlan MNG tag 9
configure vlan MNG add ports 1-3 tagged
configure vlan MNG ipaddress 10.10.10.111 255.255.255.0
create vlan "control_main"configure vlan control_main tag 305
configure vlan control_main add ports 2-3 tagged
configure vlan control_sub tag 304configure vlan control_sub add ports 1-3 tagged

#ERPS MAIN RING
create erps test
configure erps test subring-mode virtualChannel
configure erps test add control vlan control_main
configure erps test ring-port east 3
configure erps test ring-port west 2
configure erps test protection-port 2
configure erps test revert enable
configure erps test timer wait-to-restore 60000
configure erps test add protected vlan MNG
configure erps test add protected vlan control_sub
configure erps test add sub-ring test-sub
enable erps test

#ERPS SUB-RING
create erps test-sub
configure erps test-sub subring-mode virtualChannel
configure erps test-sub add control vlan control_sub
configure erps test-sub ring-port east 1
configure erps test-sub revert enable
configure erps test-sub timer wait-to-restore 60000
configure erps test-sub add protected vlan MNG

#SW2 config:

#MST configuration (protected vlans, mst disabled)
spanning-tree mst configuration
instance 0 vlan 1-8;10-303;305-4094
instance 1 vlan 9;304

#ERPS
erps-ring test
open-ring
raps-virtual-channel with
erps-instance 1
wtr-timer 1
raps-mel 0
rpl port1 owner
protected-instance 1
control-vlan 304

#PORTS
Interface Ethernet1/0/25
switchport mode trunk
erps-ring test port0
!
Interface Ethernet1/0/26
switchport mode trunk
erps-ring test port1

SW3 config:
#VLANS
create vlan "MNG"configure vlan MNG tag 9
configure vlan MNG add ports 31-33 tagged
configure vlan MNG ipaddress 10.10.10.114 255.255.255.0
create vlan "control_main"
configure vlan control_main tag 305
create vlan "control_sub"
configure vlan control_sub tag 304
configure vlan control_main add ports 32-33 tagged
configure vlan control_sub add ports 31-33 tagged

#ERPS MAIN RING
create erps testconfigure erps test subring-mode virtualChannel
configure erps test add control vlan control_main
configure erps test ring-port east 32
configure erps test ring-port west 33
configure erps test revert enable
configure erps test neighbor-port 32
configure erps test timer wait-to-restore 60000
configure erps test add protected vlan MNG
configure erps test add protected vlan control_sub
configure erps test add sub-ring test-sub
enable erps test

#ERPS SUB-RING
create erps test-sub
configure erps test-sub subring-mode virtualChannel
configure erps test-sub add control vlan control_sub
configure erps test-sub ring-port east 31
configure erps test-sub revert enable
configure erps test-sub neighbor-port 31
configure erps test-sub timer wait-to-restore 60000
configure erps test-sub add protected vlan MNG
enable erps test-sub

Ok, all configs are done, let's see what is going on:

#SW1 main ERPS:
sw1# sh erps test
Name: test
Operational State: Idle Node Type: RPL Owner, Revertive
Configured State : Enabled

East Ring Port : 3 MepId: ---- Remote MepId: ---- Status: Unblocked
West Ring Port : +2 MepId: ---- Remote MepId: ---- Status: Blocked

Periodic timer interval: 5000 millisec (Enabled)
Hold-off timer interval: 0 millisec (Enabled)
Guard timer interval : 500 millisec (Enabled)
WTB timer interval : 5500 millisec (Enabled)
WTR timer interval : 60000 millisec (Enabled)

Ring MD Level : ----
Notify Topology Change : -------
Subring Mode : Virtual Channel

ERPS Control Vlan: control_main VID:305
Topology Change Propogation List: None
Topology Change Propogation : Disabled
ERPS Major ring has following Sub-Ring(s):
Sub-Ring Name : test-sub
ERPS Ring has following Protected Vlan(s):
Vlan Name VID
MNG 9
control_sub 304
Number of Protected Vlans: 2
(+) RPL Protection Port, (^) RPL Neighbor Port
(f) Force Switch Port, (m) Manual Switch Port

#SW1 subring erps:
sh erps "test-sub"
Name: test-sub
Operational State: Idle Node Type: InterConnection Node
Configured State : Enabled

East Ring Port : 1 MepId: ---- Remote MepId: ---- Status: Unblocked
West Ring Port : ----- MepId: ---- Remote MepId: ---- Status: ------

Periodic timer interval: 5000 millisec (Enabled)
Hold-off timer interval: 0 millisec (Enabled)
Guard timer interval : 500 millisec (Enabled)
WTB timer interval : 5500 millisec (Enabled)
WTR timer interval : 60000 millisec (Enabled)

Ring MD Level : ----
Notify Topology Change : -------
Subring Mode : Virtual Channel

ERPS Control Vlan: control_sub VID:304
Topology Change Propogation List: None
Topology Change Propogation : Disabled
ERPS Ring's Main-Ring : test
ERPS Ring has following Protected Vlan(s):
Vlan Name VID
MNG 9
Number of Protected Vlans: 1
(+) RPL Protection Port, (^) RPL Neighbor Port
(f) Force Switch Port, (m) Manual Switch Port

#On sw2:
#sh erps instance
ERPS Ring: test
Instance: 1
Description: -
Protected Instance: 1
Revertive mode: revertive
R-APS MEL: 0
R-APS Virtual-Channel: with
Control Vlan: 304
Ring ID: 1
Guard Timer(10ms): 50
Holdoff Timer(seconds): 0
WTR Timer(min): 1
-------------------------------------------
Port Role Port-Status
-------------------------------------------
Port0 common forwarding
Port1 RPL owner blocked

sh erps ring test
R: RPL Owner
N: RPL Neighbour
C: Common Node
-----------------------------------------
Version: ITU-T G.8032v2
R-APS ring topology: open-ring
R-APS Virtual-Channel: with
Port0: Ethernet1/0/25
Failure-detect type: physical-link
Port1: Ethernet1/0/26
Failure-detect type: physical-link
--------------------------------------------------------------------------------------------------------------------------------
Instance Contral Protected WTR_Timer Guard_Timer Holdoff_Timer
ID Vlan Instance (min) (10ms) (second) Port0 Port1
--------------------------------------------------------------------------------------------------------------------------------
1 304 1 1 50 0 C R

#on SW3:
#MAIN ERPS:
sh erps test
Name: test
Operational State: Idle Node Type: RPL Neighbor
Configured State : Enabled

East Ring Port : ^32 MepId: ---- Remote MepId: ---- Status: Blocked
West Ring Port : 33 MepId: ---- Remote MepId: ---- Status: Unblocked

Periodic timer interval: 5000 millisec (Enabled)
Hold-off timer interval: 0 millisec (Enabled)
Guard timer interval : 500 millisec (Enabled)
WTB timer interval : 5500 millisec (Enabled)
WTR timer interval : 60000 millisec (Enabled)

Ring MD Level : ----
Notify Topology Change : -------
Subring Mode : Virtual Channel

ERPS Control Vlan: control_main VID:305
Topology Change Propogation List: None
Topology Change Propogation : Disabled
ERPS Major ring has following Sub-Ring(s):
Sub-Ring Name : test-sub
ERPS Ring has following Protected Vlan(s):
Vlan Name VID
MNG 9
control_sub 304
Number of Protected Vlans: 2
(+) RPL Protection Port, (^) RPL Neighbor Port
(f) Force Switch Port, (m) Manual Switch Port

#subring ERPS
sh erps "test-sub"
Name: test-sub
Operational State: Idle Node Type: RPL Neighbor
Configured State : Enabled

East Ring Port : ^31 MepId: ---- Remote MepId: ---- Status: Blocked
West Ring Port : ----- MepId: ---- Remote MepId: ---- Status: ------

Periodic timer interval: 5000 millisec (Enabled)
Hold-off timer interval: 0 millisec (Enabled)
Guard timer interval : 500 millisec (Enabled)
WTB timer interval : 5500 millisec (Enabled)
WTR timer interval : 60000 millisec (Enabled)

Ring MD Level : ----
Notify Topology Change : -------
Subring Mode : Virtual Channel

ERPS Control Vlan: control_sub VID:304
Topology Change Propogation List: None
Topology Change Propogation : Disabled
ERPS Ring's Main-Ring : test
ERPS Ring has following Protected Vlan(s):
Vlan Name VID
MNG 9
Number of Protected Vlans: 1
(+) RPL Protection Port, (^) RPL Neighbor Port
(f) Force Switch Port, (m) Manual Switch Port

And now, we got a problem. When both links in main ERPS ring fails, RPL owner in subring does not opens RPL link.

#SW1
sh erps "test-sub"
Name: test-sub
Operational State: Idle Node Type: InterConnection Node
Configured State : Enabled

East Ring Port : 1 MepId: ---- Remote MepId: ---- Status: Unblocked
West Ring Port : ----- MepId: ---- Remote MepId: ---- Status: ------

Periodic timer interval: 5000 millisec (Enabled)
Hold-off timer interval: 0 millisec (Enabled)
Guard timer interval : 500 millisec (Enabled)
WTB timer interval : 5500 millisec (Enabled)
WTR timer interval : 60000 millisec (Enabled)

Ring MD Level : ----
Notify Topology Change : -------
Subring Mode : Virtual Channel

ERPS Control Vlan: control_sub VID:304
Topology Change Propogation List: None
Topology Change Propogation : Disabled
ERPS Ring's Main-Ring : test
ERPS Ring has following Protected Vlan(s):
Vlan Name VID
MNG 9
Number of Protected Vlans: 1
(+) RPL Protection Port, (^) RPL Neighbor Port
(f) Force Switch Port, (m) Manual Switch Port

#SW2
sh erps instanceERPS Ring: test
Instance: 1
Description: -
Protected Instance: 1
Revertive mode: revertive
R-APS MEL: 0
R-APS Virtual-Channel: with
Control Vlan: 304
Ring ID: 1
Guard Timer(10ms): 50
Holdoff Timer(seconds): 0
WTR Timer(min): 1
-------------------------------------------
Port Role Port-Status
-------------------------------------------
Port0 common forwarding
Port1 RPL owner blocked

#SW3
sh erps "test-sub"
Name: test-sub
Operational State: Idle Node Type: RPL Neighbor
Configured State : Enabled

East Ring Port : ^31 MepId: ---- Remote MepId: ---- Status: Blocked
West Ring Port : ----- MepId: ---- Remote MepId: ---- Status: ------

Periodic timer interval: 5000 millisec (Enabled)
Hold-off timer interval: 0 millisec (Enabled)
Guard timer interval : 500 millisec (Enabled)
WTB timer interval : 5500 millisec (Enabled)
WTR timer interval : 60000 millisec (Enabled)

Ring MD Level : ----
Notify Topology Change : -------
Subring Mode : Virtual Channel

ERPS Control Vlan: control_sub VID:304
Topology Change Propogation List: None
Topology Change Propogation : Disabled
ERPS Ring's Main-Ring : test
ERPS Ring has following Protected Vlan(s):
Vlan Name VID
MNG 9
Number of Protected Vlans: 1
(+) RPL Protection Port, (^) RPL Neighbor Port
(f) Force Switch Port, (m) Manual Switch Port

Any help will be highly appreciated.

0 Kudos
14 REPLIES 14

Nikolay_Chernya
New Contributor

‎12-04-2015 08:05 AM

I have replaced Qtech 8200 with Juniper EX4500 with same result.
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Nikolay_Chernya
New Contributor

‎12-02-2015 05:27 PM

Daniel, looks like we wrote our posts simultaneously.I have done all this configuration today, but got problems on interconnected nodes - ports facing sub-ring blocked.
All output you can check in my previous post.
The only difference in our configurations - i have added cfm-vlan to protected vlan in main ring to avoid loop.
Also, you wrote configuration for SW2, in my diagram it should be SW3 according to RFC appendix.
Any thoughts will be helpful.
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Nikolay_Chernya
New Contributor

‎12-02-2015 03:31 PM

I have reviewed RFC appendix and configured UP meps on subring ports on interconnected nodes.
Now, SW2 get signalled when multiply failure on main ring occurs, and opens RPL, but ports on interconnected nodes facing sub-ring goes to blocked state.

added configuration:

#SW1 VLAN
create vlan "subring-mep"
configure vlan subring-mep tag 306
configure vlan subring-mep add ports 1-3 tagged

#SW1 CFM:
create cfm domain string "test" md-level 6configure cfm domain "test" add association string "level6" vlan "subring-mep"
configure cfm domain "test" association "level6" ports 1 add end-point up 601
configure cfm domain "test" association "level6" ports 1 end-point up add group "sw1-sw3"
configure cfm group "sw1-sw3" add rmep 501
#SW1 ERPS
configure erps test-sub cfm protection primary add group sw1-sw3
configure erps test add protected vlan subring-mep

#SW3 VLAN
create vlan "subring-mep"
configure vlan subring-mep tag 306
configure vlan subring-mep add ports 31-33 tagged

#SW3 CFM:
create cfm domain string "test" md-level 6configure cfm domain "test" add association string "level6" vlan "subring-mep"
configure cfm domain "test" association "level6" ports 31 add end-point up 501
configure cfm domain "test" association "level6" ports 31 end-point up add group "sw3-sw1"
configure cfm group "sw3-sw1" add rmep 601

#SW3 ERPS
configure erps test-sub cfm protection secondary add group sw3-sw1
configure erps test add protected vlan subring-mep

STATES:

#SW1 CFM state when all ports are enabled:
sh cfmDomain: "test", MD Level: 6
Association: "level6", Destination MAC Type: Multicast, VLAN "subring-mep" with 3 cfm ports
Transmit Interval: 1000 ms, Type : IEEE 802.1ag Maintenance Association
port 1; Up End Point, mepid: 601, transmit-interval: 1000 ms (from association)
MEP State: Enabled, CCM Message: Enabled, Send SenderId TLV: Disabled

Faulting State : No
Last Faulting State Change : Wed Dec 2 19:21:28 2015

MEP Error Defects : None
Port Status : Up port 2; Intermediate Point ( Dynamic )
port 3; Intermediate Point ( Dynamic )

Total Number of Domain : 1
Total Number of Association : 1
Total Number of Up MEP : 1
Total Number of Down MEP : 0
Total Number of MIP : 2
Total Number of CFM port : 3
Total Number of SW MEP : 1
Total Number of HW MEP : 0
Total Number of VPLS MIP(Static/Up): 0 / 0

================================================================================
MEP Error Defect Types:
Remote : Not receiving CCMs from Remote MEP
Error : Erroneous CCM received
XCON : Cross-connect CCM received
RDI : Remote Defect Indication sent by some MEP

#SW1 MAIN ring:
sh erps test
Name: test
Operational State: Idle Node Type: RPL Owner, Revertive
Configured State : Enabled

East Ring Port : 3 MepId: ---- Remote MepId: ---- Status: Unblocked
West Ring Port : +2 MepId: ---- Remote MepId: ---- Status: Blocked

Periodic timer interval: 5000 millisec (Enabled)
Hold-off timer interval: 0 millisec (Enabled)
Guard timer interval : 500 millisec (Enabled)
WTB timer interval : 5500 millisec (Enabled)
WTR timer interval : 60000 millisec (Enabled)

Ring MD Level : ----
Notify Topology Change : -------
Subring Mode : Virtual Channel

ERPS Control Vlan: control_main VID:305
Topology Change Propogation List: None
Topology Change Propogation : Disabled
ERPS Major ring has following Sub-Ring(s):
Sub-Ring Name : test-sub
ERPS Ring has following Protected Vlan(s):
Vlan Name VID
MNG 9
control_sub 304
subring-mep 306
Number of Protected Vlans: 3
(+) RPL Protection Port, (^) RPL Neighbor Port
(f) Force Switch Port, (m) Manual Switch Port

#SW1 ERPS SUB-RING
sh erps "test-sub"
Name: test-sub
Operational State: Idle Node Type: InterConnection Node
Configured State : Enabled

East Ring Port : 1 MepId: ---- Remote MepId: ---- Status: Unblocked
West Ring Port : ----- MepId: ---- Remote MepId: ---- Status: ------

Subring Protection Group: sw1-sw3

Periodic timer interval: 5000 millisec (Enabled)
Hold-off timer interval: 0 millisec (Enabled)
Guard timer interval : 500 millisec (Enabled)
WTB timer interval : 5500 millisec (Enabled)
WTR timer interval : 60000 millisec (Enabled)

Ring MD Level : ----
Notify Topology Change : -------
Subring Mode : Virtual Channel

ERPS Control Vlan: control_sub VID:304
Topology Change Propogation List: None
Topology Change Propogation : Disabled
ERPS Ring's Main-Ring : test
ERPS Ring has following Protected Vlan(s):
Vlan Name VID
MNG 9
Number of Protected Vlans: 1
(+) RPL Protection Port, (^) RPL Neighbor Port
(f) Force Switch Port, (m) Manual Switch Port

#SW2 ERPS
sh erps instanceERPS Ring: test
Instance: 1
Description: -
Protected Instance: 1
Revertive mode: revertive
R-APS MEL: 0
R-APS Virtual-Channel: with
Control Vlan: 304
Ring ID: 1
Guard Timer(10ms): 50
Holdoff Timer(seconds): 0
WTR Timer(min): 1
-------------------------------------------
Port Role Port-Status
-------------------------------------------
Port0 common forwarding
Port1 RPL owner blocked

#SW3 CFM
sh cfmDomain: "test", MD Level: 6
Association: "level6", Destination MAC Type: Multicast, VLAN "subring-mep" with 3 cfm ports
Transmit Interval: 1000 ms, Type : IEEE 802.1ag Maintenance Association
port 31; Up End Point, mepid: 501, transmit-interval: 1000 ms (from association)
MEP State: Enabled, CCM Message: Enabled, Send SenderId TLV: Disabled

Faulting State : No
Last Faulting State Change : Wed Dec 2 16:20:51 2015

MEP Error Defects : None
Port Status : Up port 32; Intermediate Point ( Dynamic )
port 33; Intermediate Point ( Dynamic )

Total Number of Domain : 1
Total Number of Association : 1
Total Number of Up MEP : 1
Total Number of Down MEP : 0
Total Number of MIP : 2
Total Number of CFM port : 3
Total Number of SW MEP : 1
Total Number of HW MEP : 0
Total Number of VPLS MIP(Static/Up): 0 / 0

================================================================================
MEP Error Defect Types:
Remote : Not receiving CCMs from Remote MEP
Error : Erroneous CCM received
XCON : Cross-connect CCM received
RDI : Remote Defect Indication sent by some MEP

#SW3 ERPS MAIN
sh erps test
Name: test
Operational State: Idle Node Type: RPL Neighbor
Configured State : Enabled

East Ring Port : ^32 MepId: ---- Remote MepId: ---- Status: Blocked
West Ring Port : 33 MepId: ---- Remote MepId: ---- Status: Unblocked

Periodic timer interval: 5000 millisec (Enabled)
Hold-off timer interval: 0 millisec (Enabled)
Guard timer interval : 500 millisec (Enabled)
WTB timer interval : 5500 millisec (Enabled)
WTR timer interval : 60000 millisec (Enabled)

Ring MD Level : ----
Notify Topology Change : -------
Subring Mode : Virtual Channel

ERPS Control Vlan: control_main VID:305
Topology Change Propogation List: None
Topology Change Propogation : Disabled
ERPS Major ring has following Sub-Ring(s):
Sub-Ring Name : test-sub
ERPS Ring has following Protected Vlan(s):
Vlan Name VID
MNG 9
control_sub 304
subring-mep 306
Number of Protected Vlans: 3
(+) RPL Protection Port, (^) RPL Neighbor Port
(f) Force Switch Port, (m) Manual Switch Port

#SW3 ERPS SUB-RING
sh erps "test-sub"
Name: test-sub
Operational State: Idle Node Type: RPL Neighbor
Configured State : Enabled

East Ring Port : ^31 MepId: ---- Remote MepId: ---- Status: Blocked
West Ring Port : ----- MepId: ---- Remote MepId: ---- Status: ------

Subring Protection Group: sw3-sw1

Periodic timer interval: 5000 millisec (Enabled)
Hold-off timer interval: 0 millisec (Enabled)
Guard timer interval : 500 millisec (Enabled)
WTB timer interval : 5500 millisec (Enabled)
WTR timer interval : 60000 millisec (Enabled)

Ring MD Level : ----
Notify Topology Change : -------
Subring Mode : Virtual Channel

ERPS Control Vlan: control_sub VID:304
Topology Change Propogation List: None
Topology Change Propogation : Disabled
ERPS Ring's Main-Ring : test
ERPS Ring has following Protected Vlan(s):
Vlan Name VID
MNG 9
Number of Protected Vlans: 1
(+) RPL Protection Port, (^) RPL Neighbor Port
(f) Force Switch Port, (m) Manual Switch Port

##############################
Now, if we disable both ports in main ring, we can see following:

#SW1 CFM
sh cfmDomain: "test", MD Level: 6
Association: "level6", Destination MAC Type: Multicast, VLAN "subring-mep" with 3 cfm ports
Transmit Interval: 1000 ms, Type : IEEE 802.1ag Maintenance Association
port 1; Up End Point, mepid: 601, transmit-interval: 1000 ms (from association)
MEP State: Enabled, CCM Message: Enabled, Send SenderId TLV: Disabled

Faulting State : Yes
Last Faulting State Change : Wed Dec 2 19:25:52 2015

MEP Error Defects : Remote
Port Status : Up port 2; Intermediate Point ( Dynamic )
port 3; Intermediate Point ( Dynamic )

Total Number of Domain : 1
Total Number of Association : 1
Total Number of Up MEP : 1
Total Number of Down MEP : 0
Total Number of MIP : 2
Total Number of CFM port : 3
Total Number of SW MEP : 1
Total Number of HW MEP : 0
Total Number of VPLS MIP(Static/Up): 0 / 0

================================================================================
MEP Error Defect Types:
Remote : Not receiving CCMs from Remote MEP
Error : Erroneous CCM received
XCON : Cross-connect CCM received
RDI : Remote Defect Indication sent by some MEP

#SW1 ERPS MAIN
sh erps test
Name: test
Operational State: Protection Node Type: RPL Owner, Revertive
Configured State : Enabled

East Ring Port : 3 MepId: ---- Remote MepId: ---- Status: Blocked
West Ring Port : +2 MepId: ---- Remote MepId: ---- Status: Blocked

Periodic timer interval: 5000 millisec (Enabled)
Hold-off timer interval: 0 millisec (Enabled)
Guard timer interval : 500 millisec (Enabled)
WTB timer interval : 5500 millisec (Enabled)
WTR timer interval : 60000 millisec (Enabled)

Ring MD Level : ----
Notify Topology Change : -------
Subring Mode : Virtual Channel

ERPS Control Vlan: control_main VID:305
Topology Change Propogation List: None
Topology Change Propogation : Disabled
ERPS Major ring has following Sub-Ring(s):
Sub-Ring Name : test-sub
ERPS Ring has following Protected Vlan(s):
Vlan Name VID
MNG 9
control_sub 304
subring-mep 306
Number of Protected Vlans: 3
(+) RPL Protection Port, (^) RPL Neighbor Port
(f) Force Switch Port, (m) Manual Switch Port

#SW1 ERPS SUB-RING
sh erps "test-sub"
Name: test-sub
Operational State: Protection Node Type: InterConnection Node
Configured State : Enabled

East Ring Port : 1 MepId: ---- Remote MepId: ---- Status: Blocked
West Ring Port : ----- MepId: ---- Remote MepId: ---- Status: ------

Subring Protection Group: sw1-sw3

Periodic timer interval: 5000 millisec (Enabled)
Hold-off timer interval: 0 millisec (Enabled)
Guard timer interval : 500 millisec (Enabled)
WTB timer interval : 5500 millisec (Enabled)
WTR timer interval : 60000 millisec (Enabled)

Ring MD Level : ----
Notify Topology Change : -------
Subring Mode : Virtual Channel

ERPS Control Vlan: control_sub VID:304
Topology Change Propogation List: None
Topology Change Propogation : Disabled
ERPS Ring's Main-Ring : test
ERPS Ring has following Protected Vlan(s):
Vlan Name VID
MNG 9
Number of Protected Vlans: 1
(+) RPL Protection Port, (^) RPL Neighbor Port
(f) Force Switch Port, (m) Manual Switch Port

#SW2
sh erps instanceERPS Ring: test
Instance: 1
Description: -
Protected Instance: 1
Revertive mode: revertive
R-APS MEL: 0
R-APS Virtual-Channel: with
Control Vlan: 304
Ring ID: 1
Guard Timer(10ms): 50
Holdoff Timer(seconds): 0
WTR Timer(min): 1
-------------------------------------------
Port Role Port-Status
-------------------------------------------
Port0 common forwarding
Port1 RPL owner forwarding

#SW3 CFM
sh cfmDomain: "test", MD Level: 6
Association: "level6", Destination MAC Type: Multicast, VLAN "subring-mep" with 3 cfm ports
Transmit Interval: 1000 ms, Type : IEEE 802.1ag Maintenance Association
port 31; Up End Point, mepid: 501, transmit-interval: 1000 ms (from association)
MEP State: Enabled, CCM Message: Enabled, Send SenderId TLV: Disabled

Faulting State : Yes
Last Faulting State Change : Wed Dec 2 16:25:14 2015

MEP Error Defects : Remote
Port Status : Up port 32; Intermediate Point ( Dynamic )
port 33; Intermediate Point ( Dynamic )

Total Number of Domain : 1
Total Number of Association : 1
Total Number of Up MEP : 1
Total Number of Down MEP : 0
Total Number of MIP : 2
Total Number of CFM port : 3
Total Number of SW MEP : 1
Total Number of HW MEP : 0
Total Number of VPLS MIP(Static/Up): 0 / 0

================================================================================
MEP Error Defect Types:
Remote : Not receiving CCMs from Remote MEP
Error : Erroneous CCM received
XCON : Cross-connect CCM received
RDI : Remote Defect Indication sent by some MEP

#SW3 ERPS MAIN
sh erps test
Name: test
Operational State: Protection Node Type: RPL Neighbor
Configured State : Enabled

East Ring Port : ^32 MepId: ---- Remote MepId: ---- Status: Blocked
West Ring Port : 33 MepId: ---- Remote MepId: ---- Status: Blocked

Periodic timer interval: 5000 millisec (Enabled)
Hold-off timer interval: 0 millisec (Enabled)
Guard timer interval : 500 millisec (Enabled)
WTB timer interval : 5500 millisec (Enabled)
WTR timer interval : 60000 millisec (Enabled)

Ring MD Level : ----
Notify Topology Change : -------
Subring Mode : Virtual Channel

ERPS Control Vlan: control_main VID:305
Topology Change Propogation List: None
Topology Change Propogation : Disabled
ERPS Major ring has following Sub-Ring(s):
Sub-Ring Name : test-sub
ERPS Ring has following Protected Vlan(s):
Vlan Name VID
MNG 9
control_sub 304
subring-mep 306
Number of Protected Vlans: 3
(+) RPL Protection Port, (^) RPL Neighbor Port
(f) Force Switch Port, (m) Manual Switch Port

#SW3 SUB-RING
sh erps "test-sub"
Name: test-sub
Operational State: Protection Node Type: RPL Neighbor
Configured State : Enabled

East Ring Port : ^31 MepId: ---- Remote MepId: ---- Status: Blocked
West Ring Port : ----- MepId: ---- Remote MepId: ---- Status: ------

Subring Protection Group: sw3-sw1

Periodic timer interval: 5000 millisec (Enabled)
Hold-off timer interval: 0 millisec (Enabled)
Guard timer interval : 500 millisec (Enabled)
WTB timer interval : 5500 millisec (Enabled)
WTR timer interval : 60000 millisec (Enabled)

Ring MD Level : ----
Notify Topology Change : -------
Subring Mode : Virtual Channel

ERPS Control Vlan: control_sub VID:304
Topology Change Propogation List: None
Topology Change Propogation : Disabled
ERPS Ring's Main-Ring : test
ERPS Ring has following Protected Vlan(s):
Vlan Name VID
MNG 9
Number of Protected Vlans: 1
(+) RPL Protection Port, (^) RPL Neighbor Port
(f) Force Switch Port, (m) Manual Switch Port

So, both ports on interconnected nodes facing subring are blocked.I have tried setting primary and secondary protection path on both nodes with no luck.
Looks like i just misunderstanding something here.

Any help will be appreciated, thanks in advance.

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dflouret
Extreme Employee

‎12-02-2015 03:21 PM

Nikolai,

I've just done a "quick and dirty" config using EXOS-VM switches, and here's my config:

# Configuration for SW 1
# CFM Up MEP Configuration for ERPS sub-ring
create cfm domain string sr1 md-level 3
configure cfm domain sr1 add association string MDlevel1 vlan cfmVlan
configure cfm domain sr1 association MDlevel1 ports 1 add end-point up 100
configure cfm domain sr1 association MDlevel1 ports 1 end-point up add group S2
configure cfm group S2 add rmep 200
configure erps sub_ring cfm protection primary add group S2

# Configuration for SW 2
# CFM Up MEP configuration for ERPS sub-ring
create cfm domain string sr1 md-level 3
configure cfm domain sr1 add association string MDlevel1 vlan cfmVlan
configure cfm domain sr1 association MDlevel1 ports 31 add end-point up 200
configure cfm domain sr1 association MDlevel1 ports 31 end-point up add group S1
configure cfm group S1 add rmep 100
configure erps sub_ring cfm protection primary add group S1

cfmVlan is the vlan through which the CFM messages will be sent. This vlan CAN'T BE a ring control vlan.

The following log messages were generated in SW1 when both links between SW1 and SW2 failed:

12/01/2015 21:15:46.85 : ERPS ring sub_ring state changed from old state Idle to new state Protection
12/01/2015 21:15:46.85 : Remote End-Point 200/00:01:30:DF:05:02 expired on up end-point, domain "sr1", ma "MDlevel1", port 3
12/01/2015 21:15:44.15 : Port 2 link down
12/01/2015 21:15:42.16 : Port 1 link down
12/01/2015 21:15:42.06 : ERPS ring main_ring state changed from old state Idle to new state Protection

These appeared in SW2:

12/01/2015 21:15:45.00 : Maintenance End-Point 200 Error Not recv CCM from RMEP occurred on up end-point, domain "sr1", ma "MDlevel1", port 3
12/01/2015 21:15:42.50 : ERPS ring sub_ring state changed from old state Idle to new state Protection
12/01/2015 21:15:42.50 : Remote End-Point 100/00:01:30:DF:05:01 expired on up end-point, domain "sr1", ma "MDlevel1", port 3
12/01/2015 21:15:39.45 : Port 2 link down
12/01/2015 21:15:37.43 : ERPS ring main_ring state changed from old state Idle to new state Protection
12/01/2015 21:15:37.43 : Port 1 link down

And these in SW3:

12/01/2015 21:15:09.35 : ERPS ring sub_ring state changed from old state Idle to new state Protection
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Nikolay_Chernya
New Contributor
In response to dflouret

‎12-02-2015 03:21 PM

We have updated to recomended verison few days ago - ExtremeXOS version 15.6.3.1 v1563b1-patch1-5, with same result.All output posted in this thread is from 15.6.3.1.
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GTM-P2G8KFN