Cisco REP adjacency failed?!

I configured two switches with this configuration and enabled the REP protocol but the rep ports fails for the segment !?

S1# show run int po1
Building configuration...

Current configuration : 273 bytes
!
interface Port-channel1

port-type nni
switchport trunk allowed vlan 101
switchport mode trunk
bandwidth 4000
rep segment 1006 edge primary
rep preempt delay 60
rep block port 17 vlan 1-4094
end

S2#show run int po1
Building configuration...

Current configuration : 193 bytes
!
interface Port-channel1

port-type nni
switchport trunk allowed vlan 101
switchport mode trunk
bandwidth 4000
rep segment 1006
end

S1#show interfaces po1 rep
Interface Seg-id Type LinkOp Role


Port-channel1 1006 Primary Edge ONE_WAY Fail

S1#show interfaces po1 rep detail
Port-channel1 REP enabled
Segment-id: 1006 (Primary Edge)
PortID: 0040E0ACF1EEB380
Preferred flag: No
Operational Link Status: ONE_WAY
Current Key: 0040E0ACF1EEB380DB73
Port Role: Fail
Blocked VLAN: 1-4094
Admin-vlan: 1007
Preempt Delay Timer: 60 sec
LSL Ageout Timer: 5000 ms
Configured Load-balancing Block Port: 17
Configured Load-balancing Block VLAN: 1-4094
STCN Propagate to: none
LSL PDU rx: 1007, tx: 981
HFL PDU rx: 0, tx: 0
BPA TLV rx: 0, tx: 0
BPA (STCN, LSL) TLV rx: 0, tx: 0
BPA (STCN, HFL) TLV rx: 0, tx: 0
EPA-ELECTION TLV rx: 0, tx: 0
EPA-COMMAND TLV rx: 0, tx: 0
EPA-INFO TLV rx: 0, tx: 0

S1#show rep topology segment 1006
REP Segment 1006
Warning: REP detects a segment failure, topology may be incomplete

BridgeName PortName Edge Role


T1-SW1-MERCC Po1 Sec Fail

S1#show rep topology segment 1006 detail
REP Segment 1006
Warning: REP detects a segment failure, topology may be incomplete

T1-SW1-MERCC, Po1 (Secondary Edge)
Failed Port, Reason: Physical link down
Bridge MAC: e0ac.f1ee.b380
Port Number: 040
Port Priority: 800
Neighbor Number: Not available
S1#show interfaces po1
Port-channel1 is up, line protocol is up (connected)
Hardware is EtherChannel, address is e0ac.f1ee.b384 (bia e0ac.f1ee.b384)

MTU 1500 bytes, BW 4000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, link type is auto, media type is unknown
input flow-control is off, output flow-control is unsupported
Members in this channel: Fa0/1 Fa0/2
ARP type: ARPA, ARP Timeout 04:00:00
Last input 01:47:45, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 1000 bits/sec, 2 packets/sec
14934385 packets input, 3458586858 bytes, 0 no buffer
Received 7745744 broadcasts (6190665 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 6190665 multicast, 0 pause input
0 input packets with dribble condition detected
101374030 packets output, 7217687505 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out

Answers

  • @heshamshaababn said:
    I configured two switches with this configuration and enabled the REP protocol but the rep ports fails for the segment !?

    S1# show run int po1
    Building configuration...

    Current configuration : 273 bytes
    !
    interface Port-channel1

    port-type nni
    switchport trunk allowed vlan 101
    switchport mode trunk
    bandwidth 4000
    rep segment 1006 edge primary
    rep preempt delay 60
    rep block port 17 vlan 1-4094
    end


    S2#show run int po1
    Building configuration...

    Current configuration : 193 bytes
    !
    interface Port-channel1

    port-type nni
    switchport trunk allowed vlan 101
    switchport mode trunk
    bandwidth 4000
    rep segment 1006
    end

    S1#show interfaces po1 rep
    Interface Seg-id Type LinkOp Role


    Port-channel1 1006 Primary Edge ONE_WAY Fail


    S1#show interfaces po1 rep detail
    Port-channel1 REP enabled
    Segment-id: 1006 (Primary Edge)
    PortID: 0040E0ACF1EEB380
    Preferred flag: No
    Operational Link Status: ONE_WAY
    Current Key: 0040E0ACF1EEB380DB73
    Port Role: Fail
    Blocked VLAN: 1-4094
    Admin-vlan: 1007
    Preempt Delay Timer: 60 sec
    LSL Ageout Timer: 5000 ms
    Configured Load-balancing Block Port: 17
    Configured Load-balancing Block VLAN: 1-4094
    STCN Propagate to: none
    LSL PDU rx: 1007, tx: 981
    HFL PDU rx: 0, tx: 0
    BPA TLV rx: 0, tx: 0
    BPA (STCN, LSL) TLV rx: 0, tx: 0
    BPA (STCN, HFL) TLV rx: 0, tx: 0
    EPA-ELECTION TLV rx: 0, tx: 0
    EPA-COMMAND TLV rx: 0, tx: 0
    EPA-INFO TLV rx: 0, tx: 0

    S1#show rep topology segment 1006
    REP Segment 1006
    Warning: REP detects a segment failure, topology may be incomplete


    BridgeName PortName Edge Role


    T1-SW1-MERCC Po1 Sec Fail


    S1#show rep topology segment 1006 detail
    REP Segment 1006
    Warning: REP detects a segment failure, topology may be incomplete


    T1-SW1-MERCC, Po1 (Secondary Edge)
    Failed Port, Reason: Physical link down
    Bridge MAC: e0ac.f1ee.b380
    Port Number: 040
    Port Priority: 800
    Neighbor Number: Not available
    S1#show interfaces po1
    Port-channel1 is up, line protocol is up (connected)
    Hardware is EtherChannel, address is e0ac.f1ee.b384 (bia e0ac.f1ee.b384)

    MTU 1500 bytes, BW 4000 Kbit/sec, DLY 100 usec,
    reliability 255/255, txload 1/255, rxload 1/255
    Encapsulation ARPA, loopback not set
    Keepalive set (10 sec)
    Full-duplex, 100Mb/s, link type is auto, media type is unknown
    input flow-control is off, output flow-control is unsupported
    Members in this channel: Fa0/1 Fa0/2
    ARP type: ARPA, ARP Timeout 04:00:00
    Last input 01:47:45, output 00:00:00, output hang never
    Last clearing of "show interface" counters never
    Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
    Queueing strategy: fifo
    Output queue: 0/40 (size/max)
    5 minute input rate 0 bits/sec, 0 packets/sec
    5 minute output rate 1000 bits/sec, 2 packets/sec
    14934385 packets input, 3458586858 bytes, 0 no buffer
    Received 7745744 broadcasts (6190665 multicasts)
    0 runts, 0 giants, 0 throttles
    0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
    0 watchdog, 6190665 multicast, 0 pause input
    0 input packets with dribble condition detected
    101374030 packets output, 7217687505 bytes, 0 underruns
    0 output errors, 0 collisions, 2 interface resets
    0 unknown protocol drops
    0 babbles, 0 late collision, 0 deferred
    0 lost carrier, 0 no carrier, 0 pause output
    0 output buffer failures, 0 output buffers swapped out

    Are they directly connected links or goes over a carrier links? If it goes over carrier links are they up and running?Not sure if REP packets are being blocked somewhere...

  • they are connected via Transmission(fiber or MW) so we must allow a untagged vlan to pass the rep messages through it and it was the problem :smiley::smiley:

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