Ethernet OAM (operation administration mantenance) with router cisco ASR9K

 

Ethernet OAM (Operation, Administration and Maintanance) è un meccanismo di controllo della operatività di un link P2P e lavora attaverso:

  • link monitoring
  • remote failure detection
  • remote loopback control

 

ed utlizza frame conosciute come OAMPDU standardizzate in IEEE 802.3ah clause 57); per link monitoring si intende la trasmissione di OAMPDU in modo periodico e trasportano informazioni relative

a capability ed event notification.

 

Dying gasp si riferisce al remote failure indication e le OAMPDU sono trasmesse in caso di down di un nodo; dedicate codifiche sono create in relazioni al tipo di evento (admin shutdown, power loss, reboot).

 

Il peer neighbor che riceve queste OAMPDU reagisce secondo l’azione configurata.

  • SNMP trap
  • Syslog message
  • Interface disable
  • Active interworking mechanism

 

Remote loopback è utile per differenti use-case in particolare per operazioni di troubleshooting (service turn-up, post service turn-up, out of service testing)

 

Si riporta la configurazione OAM di un P_router T1600:

 

set protocols oam ethernet link-fault-management traceoptions file traceoam

set protocols oam ethernet link-fault-management traceoptions file size 4m

set protocols oam ethernet link-fault-management traceoptions flag protocol

!

set protocols oam ethernet link-fault-management action-profile oam_basic event link-adjacency-loss

set protocols oam ethernet link-fault-management action-profile oam_basic action syslog

!

set protocols oam ethernet link-fault-management action-profile oam_events event link-event-rate symbol-period 4

set protocols oam ethernet link-fault-management action-profile oam_events event link-event-rate frame-error 4

set protocols oam ethernet link-fault-management action-profile oam_events action syslog

!

set protocols oam ethernet link-fault-management action-profile oam_back-adj event link-adjacency-loss

set protocols oam ethernet link-fault-management action-profile oam_back-adj action syslog

!

set protocols oam ethernet link-fault-management action-profile oam_back-frameperiod event link-event-rate frame-period 1

set protocols oam ethernet link-fault-management action-profile oam_back-frameperiod action syslog

!

set protocols oam ethernet link-fault-management action-profile oam_back-symbol event link-event-rate symbol-period 1

set protocols oam ethernet link-fault-management action-profile oam_back-symbol action syslog

!

 

Oltre a creare dei traceoption per debugging OAM, si creano cinque profile assegnando ad essi degli eventi e relative azioni:

 

oam 1

I suddetti profile sono poi applicate alle interfacce (si riportano alcuni esempi):

 

set protocols oam ethernet link-fault-management interface xe-2/0/2 apply-action-profile oam_back-symbol

set protocols oam ethernet link-fault-management interface xe-2/0/2 apply-action-profile oam_back-frameperiod

set protocols oam ethernet link-fault-management interface xe-2/0/2 apply-action-profile oam_back-adj

set protocols oam ethernet link-fault-management interface xe-2/0/2 pdu-interval 500

set protocols oam ethernet link-fault-management interface xe-2/0/2 link-discovery active

set protocols oam ethernet link-fault-management interface xe-2/0/2 pdu-threshold 3

set protocols oam ethernet link-fault-management interface xe-2/0/2 event-thresholds symbol-period 1

set protocols oam ethernet link-fault-management interface xe-2/0/2 event-thresholds frame-error 1

!

set protocols oam ethernet link-fault-management interface ge-0/0/0 apply-action-profile oam_events

set protocols oam ethernet link-fault-management interface ge-0/0/0 apply-action-profile oam_basic

set protocols oam ethernet link-fault-management interface ge-0/0/0 pdu-interval 1000

set protocols oam ethernet link-fault-management interface ge-0/0/0 link-discovery passive

set protocols oam ethernet link-fault-management interface ge-0/0/0 pdu-threshold 5

set protocols oam ethernet link-fault-management interface ge-0/0/0 event-thresholds symbol-period 4

set protocols oam ethernet link-fault-management interface ge-0/0/0 event-thresholds frame-error 4

 

 

La logica applicate è quella di assegnare alle interface 10G gli ultimi tre profili indicati nella tabella e settare un link-discovery active

Sulla base di questa configurazione Junos, andiamo ad applicare le stesse logiche sugli ASR9910 P_router:

 

Vengono configurati due profili:

 

1° profile

 

ethernet oam profile OAM-DISCOVERY-ACTIVE

 link-monitor

   symbol-period window 1000

   frame-period window 1000

   symbol-period threshold symbols low 1 high 4 frame threshold low 1 high 4

exit

 mib-retrieval

 connection timeout 3

 hello-interval 500 msec

 mode active

 require-remote mode active        

 require-remote link-monitoring

 require-remote mib-retrieval

!

La config action SYSLOG è di default in Cisco

 

ethernet oam profile OAM-DISCOVERY-PASSIVE

 link-monitor

   symbol-period window 1000

   frame-period window 1000

   symbol-period threshold symbols low 1 high 4 frame threshold low 1 high 4

exit

 mib-retrieval

 connection timeout 5

 hello-interval 1000 msec

 mode active

 require-remote mode passive        

 require-remote link-monitoring

 require-remote mib-retrieval

!

La config action SYSLOG è di default in Cisco

 

 

Il profili active viene poi applicato alle interfacce secondo questa configurazione:

 

interface TenGigE0/0/0/0

 description to-P-router

 ethernet oam

  profile OAM-DISCOVERY-ACTIVE

!

interface GigabitEthernet0/0/0/4

 description to-P_router

 ethernet oam

  profile OAM-DISCOVERY-ACTIVE

!

!

mpls oam

 

oam 2

 

 

VERIFICA FROM ASR9K10 P-TEST

 

1) OAM discovery

 

RP/0/RSP0/CPU0:P_TEST#show ethernet oam discovery

Fri Jul 10 10:06:50.356 UTC

TenGigE0/0/0/0:

Local client

------------

  Administrative configuration:

    PDU revision:                        22

    Mode:                            Active

    Unidirectional support:               N

    Link monitor support:                 Y

    Remote loopback support:              N

    MIB retrieval support:                N

    Maximum PDU size:                  1500

    Mis-wiring detection key:        7BCD51

Operational status:

    Port status:                Operational

    Loopback status:                   None

    Interface mis-wired:                  N

Remote client

-------------

  MAC address:               001d.b5f9.123d

  Vendor (OUI):                    00.90.69

  Administrative configuration:

    PDU revision:                         1

    Mode:                            Active

    Unidirectional support:               N

    Link monitor support:                 Y

    Remote loopback support:              N

    MIB retrieval support:                N

    Maximum PDU size:                  1500

 

 

GigabitEthernet0/0/0/4:

Local client

------------

  Administrative configuration:

    PDU revision:                        15

    Mode:                            Active

    Unidirectional support:               N

    Link monitor support:                 Y

    Remote loopback support:              N

    MIB retrieval support:                N

    Maximum PDU size:                  1500

    Mis-wiring detection key:        AC5070

Operational status:

    Port status:                Operational

    Loopback status:                   None

    Interface mis-wired:                  N

Remote client

-------------

  MAC address:               f80f.6f58.c601

  Vendor (OUI):                    00.00.0C (Cisco)

  Administrative configuration:

    PDU revision:                     59896

    Mode:                            Active

    Unidirectional support:               N

    Link monitor support:                 Y

    Remote loopback support:              N

    MIB retrieval support:                N

    Maximum PDU size:                  1500

 

 

GigabitEthernet0/0/0/5:

Local client

------------

  Administrative configuration:

    PDU revision:                        15

    Mode:                            Active

    Unidirectional support:               N

    Link monitor support:                 Y

    Remote loopback support:              N

    MIB retrieval support:                N

    Maximum PDU size:                  1500

    Mis-wiring detection key:        2316AC

Operational status:

    Port status:                Operational

    Loopback status:                   None

    Interface mis-wired:                  N

Remote client

-------------

  MAC address:               f80f.6f4b.d301

  Vendor (OUI):                    00.00.0C (Cisco)

  Administrative configuration:

    PDU revision:                     59894

    Mode:                            Active

    Unidirectional support:               N

    Link monitor support:                 Y

    Remote loopback support:              N

    MIB retrieval support:                N

    Maximum PDU size:                  1500

 

 

2) OAM configuration

 

RP/0/RSP0/CPU0:P_TEST#show ethernet oam configuration

Fri Jul 10 10:06:58.550 UTC

 

TenGigE0/0/0/0:

  Hello interval:                                              1s

  Link monitoring enabled:                                      Y

  Remote loopback enabled:                                      N

  Mib retrieval enabled:                                        N

  Uni-directional link-fault detection enabled:                 N

  Configured mode:                                         Active

  Connection timeout:                                           3

  Symbol period window (ms):                                    0

  Symbol period low threshold (symbols):                        1

  Symbol period high threshold (symbols):                       4

  Frame window (ms):                                         1000

  Frame low threshold:                                          1

  Frame high threshold:                                         4

  Frame period window (ms):                                  1000

  Frame period low threshold (ppm):                             1

  Frame period high threshold (ppm):                         None

  Frame seconds window (ms):                                60000

  Frame seconds low threshold:                                  1

  Frame seconds high threshold:                              None

  High threshold action:                                     None

  Link fault action:                                          Log

  Dying gasp action:                                          Log

  Critical event action:                                      Log

  Discovery timeout action:                                   Log

  Capabilities conflict action:                               Log

  Wiring conflict action:                           Error-Disable

  Session up action:                                          Log

  Session down action:                                        Log

  Remote loopback action:                                     Log

  Require remote mode:                                     Active

  Require remote MIB retrieval:                                 N

  Require remote loopback support:                              N

  Require remote link monitoring:                               Y

 

GigabitEthernet0/0/0/4:

  Hello interval:                                              1s

  Link monitoring enabled:                                      Y

  Remote loopback enabled:                                      N

  Mib retrieval enabled:                                        N

  Uni-directional link-fault detection enabled:                 N

  Configured mode:                                         Active

  Connection timeout:                                           3

  Symbol period window (ms):                                    0

  Symbol period low threshold (symbols):                        1

  Symbol period high threshold (symbols):                       4

  Frame window (ms):                                         1000

  Frame low threshold:                                          1

  Frame high threshold:                                         4

  Frame period window (ms):                                  1000

  Frame period low threshold (ppm):                             1

  Frame period high threshold (ppm):                         None

  Frame seconds window (ms):                                60000

  Frame seconds low threshold:                                  1

  Frame seconds high threshold:                              None

  High threshold action:                                     None

  Link fault action:                                          Log

  Dying gasp action:                                          Log

  Critical event action:                                      Log

  Discovery timeout action:                                   Log

  Capabilities conflict action:                               Log

  Wiring conflict action:                           Error-Disable

  Session up action:                                          Log

  Session down action:                                        Log

  Remote loopback action:                                     Log

  Require remote mode:                                     Active

  Require remote MIB retrieval:                                 N

  Require remote loopback support:                              N

  Require remote link monitoring:                               Y

 

GigabitEthernet0/0/0/5:

  Hello interval:                                              1s

  Link monitoring enabled:                                      Y

  Remote loopback enabled:                                      N

  Mib retrieval enabled:                                        N

  Uni-directional link-fault detection enabled:                 N

  Configured mode:                                         Active

  Connection timeout:                                           3

  Symbol period window (ms):                                    0

  Symbol period low threshold (symbols):                        1

  Symbol period high threshold (symbols):                       4

  Frame window (ms):                                         1000

  Frame low threshold:                                          1

  Frame high threshold:                                         4

  Frame period window (ms):                                  1000

  Frame period low threshold (ppm):                             1

  Frame period high threshold (ppm):                         None

  Frame seconds window (ms):                                60000

  Frame seconds low threshold:                                  1

  Frame seconds high threshold:                              None

  High threshold action:                                     None

  Link fault action:                                          Log

  Dying gasp action:                                          Log

  Critical event action:                                      Log

  Discovery timeout action:                                   Log

  Capabilities conflict action:                               Log

  Wiring conflict action:                           Error-Disable

  Session up action:                                          Log

  Session down action:                                        Log

  Remote loopback action:                                     Log

  Require remote mode:                                     Active

  Require remote MIB retrieval:                                 N

  Require remote loopback support:                              N

  Require remote link monitoring:                               Y

 

 

3) AOM summary

 

RP/0/RSP0/CPU0:P_TEST#show ethernet oam summary

Fri Jul 10 10:07:10.790 UTC

Link OAM System Summary

=======================

Profiles:                                2

Interfaces:                              4

  Interface states

    Port down:                           1

    Passive wait:                        0

    Active send:                         0

    Operational:                         3

     Loopback mode:                      0

  Miswired connections:                  0

Events:                                  1

  Local:                                 0

    Symbol period:                       0

    Frame:                               0

    Frame period:                        0

    Frame seconds:                       0

  Remote:                                1

    Symbol period:                       1

    Frame:                               0

    Frame period:                        0

    Frame seconds:                       0

Recent Event Logs

=================

Local Action Taken:

    N/A    - No action needed         EFD    - Interface brought down using EFD

    None   - No action taken          Err.D  - Interface error-disabled       

    Logged - System logged          

 

 

4) AOM statistics

 

RP/0/RSP0/CPU0:P_TEST#show ethernet oam statistics

Fri Jul 10 10:07:15.410 UTC

TenGigE0/0/0/0:

Counters

--------

    Information OAMPDU Tx                        256535

    Information OAMPDU Rx                        256866

    Unique Event Notification OAMPDU Tx               0

    Unique Event Notification OAMPDU Rx               1

    Duplicate Event Notification OAMPDU Tx            0

    Duplicate Event Notification OAMPDU Rx            0

    Loopback Control OAMPDU Tx                        0

    Loopback Control OAMPDU Rx                        0

    Variable Request OAMPDU Tx                        0

    Variable Request OAMPDU Rx                        0

    Variable Response OAMPDU Tx                       0

    Variable Response OAMPDU Rx                       0

    Organization Specific OAMPDU Tx                   0

    Organization Specific OAMPDU Rx                   0

    Unsupported OAMPDU Tx                             0

    Unsupported OAMPDU Rx                             0

    Frames Lost due to OAM                            0

    Fixed frames Rx                                   0

Local event logs

----------------

    Errored Symbol Period records                     0

    Errored Frame records                             0

    Errored Frame Period records                      0

    Errored Frame Second records                      0

Remote event logs

-----------------

    Errored Symbol Period records                     1

    Errored Frame records                             0

    Errored Frame Period records                      0

    Errored Frame Second records                      0

 

 

GigabitEthernet0/0/0/4:

Counters

--------

    Information OAMPDU Tx                        256532

    Information OAMPDU Rx                        256436

    Unique Event Notification OAMPDU Tx               0

    Unique Event Notification OAMPDU Rx               0

    Duplicate Event Notification OAMPDU Tx            0

    Duplicate Event Notification OAMPDU Rx            0

    Loopback Control OAMPDU Tx                        0

    Loopback Control OAMPDU Rx                        0

    Variable Request OAMPDU Tx                        0

    Variable Request OAMPDU Rx                        0

    Variable Response OAMPDU Tx                       0

    Variable Response OAMPDU Rx                       0

    Organization Specific OAMPDU Tx                   0

    Organization Specific OAMPDU Rx                   0

    Unsupported OAMPDU Tx                             0

    Unsupported OAMPDU Rx                             0

    Frames Lost due to OAM                            0

    Fixed frames Rx                                   0

Local event logs

----------------

    Errored Symbol Period records                     0

    Errored Frame records                             0

    Errored Frame Period records                      0

    Errored Frame Second records                      0

Remote event logs

-----------------

    Errored Symbol Period records                     0

    Errored Frame records                             0

    Errored Frame Period records                      0

    Errored Frame Second records                      0

 

 

GigabitEthernet0/0/0/5:

Counters

--------

    Information OAMPDU Tx                        256529

    Information OAMPDU Rx                        256446

    Unique Event Notification OAMPDU Tx               0

    Unique Event Notification OAMPDU Rx               0

    Duplicate Event Notification OAMPDU Tx            0

    Duplicate Event Notification OAMPDU Rx            0

    Loopback Control OAMPDU Tx                        0

    Loopback Control OAMPDU Rx                        0

    Variable Request OAMPDU Tx                        0

    Variable Request OAMPDU Rx                        0

    Variable Response OAMPDU Tx                       0

    Variable Response OAMPDU Rx                       0

    Organization Specific OAMPDU Tx                   0

    Organization Specific OAMPDU Rx                   0

    Unsupported OAMPDU Tx                             0

    Unsupported OAMPDU Rx                             0

    Frames Lost due to OAM                            0

    Fixed frames Rx                                   0

Local event logs

----------------

    Errored Symbol Period records                     0

    Errored Frame records                             0

    Errored Frame Period records                      0

    Errored Frame Second records                      0

Remote event logs

-----------------

    Errored Symbol Period records                     0

    Errored Frame records                             0

    Errored Frame Period records                      0

    Errored Frame Second records                      0

 

 

VERIFICA FROM ROUTER CISCO PE1-router

 

5) AOM summary

 

PE1-router#show ethernet oam summary

Symbols:          * - Master Loopback State,  # - Slave Loopback State

                  & - Error Block State

Capability codes: L - Link Monitor,  R - Remote Loopback

                  U - Unidirection,  V - Variable Retrieval

  Local                       Remote

Interface       MAC Address    OUI    Mode    Capability

 

  Gi0/0/1       4c71.0d31.489c 00000C active   L

 

 

6) OAM status

 

PE1-router#show ethernet oam status

GigabitEthernet0/0/1

General

-------

  Admin state:           enabled

  Mode:                  active

  PDU max rate:          10 packets per second

  PDU min rate:          1 packet per 1000 ms

  Link timeout:          5000 ms

  High threshold action: no action

  Link fault action:     no action

  Dying gasp action:     no action

  Critical event action: no action

Link Monitoring

---------------

  Status: supported (on)

  Symbol Period Error

    Window:              100 x 1048576 symbols

    Low threshold:       10 error symbol(s)

    High threshold:      30 error symbol(s)

  Frame Error

    Window:              10 x 100 milliseconds

    Low threshold:       10 error frame(s)

    High threshold:      30 error frame(s)

  Frame Period Error

    Window:              1000 x 10000 frames

    Low threshold:       10 error frame(s)

    High threshold:      30 error frame(s)

  Frame Seconds Error

    Window:              100 x 100 milliseconds

    Low threshold:       1 error second(s)

    High threshold:      none

  Receive-Frame CRC Error

    Window:              10 x 100 milliseconds

    Low threshold:       10 error frame(s)

    High threshold:      none

  Transmit-Frame CRC Error: Not Supported

 

 

7) OAM statistics

 

PE1-router#show ethernet oam statistics

GigabitEthernet0/0/1

Counters:

---------

  Information OAMPDU Tx                   : 576052

  Information OAMPDU Rx                   : 576252

  Unique Event Notification OAMPDU Tx     : 0

  Unique Event Notification OAMPDU Rx     : 0

  Duplicate Event Notification OAMPDU TX  : 0

  Duplicate Event Notification OAMPDU RX  : 0

  Loopback Control OAMPDU Tx              : 0

  Loopback Control OAMPDU Rx              : 0

  Variable Request OAMPDU Tx              : 0

  Variable Request OAMPDU Rx              : 0

  Variable Response OAMPDU Tx             : 0

  Variable Response OAMPDU Rx             : 0

  Cisco OAMPDU Tx                         : 0

  Cisco OAMPDU Rx                         : 0

  Unsupported OAMPDU Tx                   : 0

  Unsupported OAMPDU Rx                   : 0

  Frames Lost due to OAM                  : 0

Local Faults:

-------------

  0 Link Fault records

  0 Dying Gasp records

  0 Critical Event records

Remote Faults:

--------------

  0 Link Fault records

  0 Dying Gasp records

  0 Critical Event records

Local event logs:

-----------------

  0 Errored Symbol Period records

  0 Errored Frame records

  0 Errored Frame Period records

  0 Errored Frame Second records

Remote event logs:

------------------

  0 Errored Symbol Period records

  0 Errored Frame records

  0 Errored Frame Period records

  0 Errored Frame Second records         

 

 

8) OAM discovery

 

R-MPLS-RMN-TEST-1#show ethernet oam discovery

 

GigabitEthernet0/0/1

Local client

------------

  Administrative configurations:

    Mode:              active

    Unidirection:      not supported

    Link monitor:      supported (on)

    Remote loopback:   not supported

    MIB retrieval:     not supported

    Mtu size:          1500

  Operational status:

    Port status:       operational

    Loopback status:   no loopback

    PDU revision:      60095

Remote client

-------------

  MAC address: 4c71.0d31.489c

  Vendor(oui): 00000C(cisco)

  Administrative configurations:

    PDU revision:      15

    Mode:              active

    Unidirection:      not supported

    Link monitor:      supported

    Remote loopback:   not supported

    MIB retrieval:     not supported

    Mtu size:          1500

 

 

FROM PE2-router

 

9) OAM summary

 

PE2-router#show ethernet oam summary

Symbols:          * - Master Loopback State,  # - Slave Loopback State

                  & - Error Block State

Capability codes: L - Link Monitor,  R - Remote Loopback

                  U - Unidirection,  V - Variable Retrieval

  Local                       Remote

Interface       MAC Address    OUI    Mode    Capability

 

  Gi0/0/1       4c71.0d31.489d 00000C active   L

  Gi0/0/2       001d.b5f9.1041 009069 active   L

 

 

10) OAM status

 

PE2-router#show ethernet oam status

GigabitEthernet0/0/1

General

-------

  Admin state:           enabled

  Mode:                  active

  PDU max rate:          10 packets per second

  PDU min rate:          1 packet per 1000 ms

  Link timeout:          5000 ms

  High threshold action: no action

  Link fault action:     no action

  Dying gasp action:     no action

  Critical event action: no action

Link Monitoring

---------------

  Status: supported (on)

  Symbol Period Error

    Window:              100 x 1048576 symbols

    Low threshold:       10 error symbol(s)

    High threshold:      30 error symbol(s)

  Frame Error

    Window:              600 x 100 milliseconds

    Low threshold:       10 error frame(s)

    High threshold:      30 error frame(s)

  Frame Period Error

    Window:              1000 x 10000 frames

    Low threshold:       10 error frame(s)

    High threshold:      30 error frame(s)

  Frame Seconds Error

    Window:              100 x 100 milliseconds

    Low threshold:       1 error second(s)

    High threshold:      none

  Receive-Frame CRC Error

    Window:              10 x 100 milliseconds

    Low threshold:       10 error frame(s)

    High threshold:      none

  Transmit-Frame CRC Error: Not Supported

GigabitEthernet0/0/2

General

-------  

  Admin state:           enabled

  Mode:                  active

  PDU max rate:          10 packets per second

  PDU min rate:          1 packet per 1000 ms

  Link timeout:          5000 ms

  High threshold action: no action

  Link fault action:     no action

  Dying gasp action:     no action

  Critical event action: no action

Link Monitoring

---------------

  Status: supported (on)

  Symbol Period Error

    Window:              100 x 1048576 symbols

    Low threshold:       10 error symbol(s)

    High threshold:      30 error symbol(s)

 

  Frame Error

    Window:              10 x 100 milliseconds

    Low threshold:       10 error frame(s)

 

 

11) OAM statistics

 

PE2-router#show ethernet oam statistics

GigabitEthernet0/0/1

Counters:

---------

  Information OAMPDU Tx                   : 579225

  Information OAMPDU Rx                   : 579410

  Unique Event Notification OAMPDU Tx     : 0

  Unique Event Notification OAMPDU Rx     : 0

  Duplicate Event Notification OAMPDU TX  : 0

  Duplicate Event Notification OAMPDU RX  : 0

  Loopback Control OAMPDU Tx              : 0

  Loopback Control OAMPDU Rx              : 0

  Variable Request OAMPDU Tx              : 0

  Variable Request OAMPDU Rx              : 0

  Variable Response OAMPDU Tx             : 0

  Variable Response OAMPDU Rx             : 0

  Cisco OAMPDU Tx                         : 0

  Cisco OAMPDU Rx                         : 0

  Unsupported OAMPDU Tx                   : 0

  Unsupported OAMPDU Rx                   : 0

  Frames Lost due to OAM                  : 0

Local Faults:

-------------

  0 Link Fault records

  0 Dying Gasp records

  0 Critical Event records

Remote Faults:

--------------

  0 Link Fault records

  0 Dying Gasp records

  0 Critical Event records

Local event logs:

-----------------

  0 Errored Symbol Period records

  0 Errored Frame records

  0 Errored Frame Period records

  0 Errored Frame Second records

Remote event logs:

------------------

  0 Errored Symbol Period records

  0 Errored Frame records

  0 Errored Frame Period records

  0 Errored Frame Second records

         

GigabitEthernet0/0/2

Counters:

---------

  Information OAMPDU Tx                   : 580491

  Information OAMPDU Rx                   : 581878

  Unique Event Notification OAMPDU Tx     : 0

  Unique Event Notification OAMPDU Rx     : 0

  Duplicate Event Notification OAMPDU TX  : 0

  Duplicate Event Notification OAMPDU RX  : 0

  Loopback Control OAMPDU Tx              : 0

  Loopback Control OAMPDU Rx              : 0

  Variable Request OAMPDU Tx              : 0

  Variable Request OAMPDU Rx              : 0

  Variable Response OAMPDU Tx             : 0

  Variable Response OAMPDU Rx             : 0

  Cisco OAMPDU Tx                         : 0

  Cisco OAMPDU Rx                         : 0

  Unsupported OAMPDU Tx                   : 0

  Unsupported OAMPDU Rx                   : 0

  Frames Lost due to OAM                  : 0

 

Local Faults:

-------------

  0 Link Fault records

  0 Dying Gasp records

  0 Critical Event records

Remote Faults:

--------------

  0 Link Fault records

  0 Dying Gasp records

  0 Critical Event records

Local event logs:

-----------------

  0 Errored Symbol Period records

  0 Errored Frame records

  0 Errored Frame Period records

  0 Errored Frame Second records

Remote event logs:

------------------

  0 Errored Symbol Period records

  0 Errored Frame records

  0 Errored Frame Period records

  0 Errored Frame Second records

 

 

12) OAM discovery

 

PE2-router#show ethernet oam discovery

GigabitEthernet0/0/1

Local client

------------

  Administrative configurations:

    Mode:              active

    Unidirection:      not supported

    Link monitor:      supported (on)

    Remote loopback:   not supported

    MIB retrieval:     not supported

    Mtu size:          1500

  Operational status:

    Port status:       operational

    Loopback status:   no loopback

    PDU revision:      60187

Remote client

-------------

  MAC address: 4c71.0d31.489d

  Vendor(oui): 00000C(cisco)

  Administrative configurations:

    PDU revision:      15

    Mode:              active

    Unidirection:      not supported

    Link monitor:      supported

    Remote loopback:   not supported

    MIB retrieval:     not supported

    Mtu size:          1500

GigabitEthernet0/0/2

Local client

------------

  Administrative configurations:

    Mode:              active

    Unidirection:      not supported

    Link monitor:      supported (on)

    Remote loopback:   not supported

    MIB retrieval:     not supported

    Mtu size:          1500

  Operational status:

    Port status:       operational

    Loopback status:   no loopback

    PDU revision:      0

         

Remote client

-------------

  MAC address: 001d.b5f9.1041

  Vendor(oui): 009069

 

  Administrative configurations:

    PDU revision:      1

    Mode:              active

    Unidirection:      not supported

    Link monitor:      supported

    Remote loopback:   not supported

    MIB retrieval:     not supported

    Mtu size:          1500