Re: LDP goes down every 3mins

From: Tony Singh <mothafungla_at_gmail.com>
Date: Tue, 11 Mar 2014 07:47:31 +0000

The first guy who replied kind of got it right sounded like a layer 1 issue

169 lost carrier

Means it's not sensing himself copying the frame onto the wire & loses signal, might have to eliminate a faulty port..

Check you have auto-neg enabled both ends of the link & 1000g

--
BR
Tony
> On 11 Mar 2014, at 07:26, Darlington Ngaiso <ngaissod_at_gmail.com> wrote:
> 
> Hi Guys
> 
> This is on a Live Equipment on a Live network.
> 
> The interface GigabitEthernet0/1.304 connects to a Switch on the Link
> Provider Network. The VLAN 304 is carried across the Transmission network
> to the other side
> 
> 
> 
> A#sh int gi0/1.304
> GigabitEthernet0/1.304 is up, line protocol is up
>  Hardware is BCM1125 Internal MAC, address is 0014.a923.83b1 (bia
> 0014.a923.83b1)
>  Internet address is 10.214.0.77/31
>  MTU 1570 bytes, BW 5000 Kbit/sec, DLY 10 usec,
>     reliability 255/255, txload 1/255, rxload 1/255
>  Encapsulation 802.1Q Virtual LAN, Vlan ID  304.
>  ARP type: ARPA, ARP Timeout 04:00:00
>  Keepalive set (10 sec)
>  Last clearing of "show interface" counters never
> 
> 
> A#sh int gi0/1
> GigabitEthernet0/1 is up, line protocol is up
>  Hardware is BCM1125 Internal MAC, address is 0014.a923.83b1 (bia
> 0014.a923.83b1)
>  MTU 1570 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
>     reliability 255/255, txload 1/255, rxload 1/255
>  Encapsulation 802.1Q Virtual LAN, Vlan ID  1., loopback not set
>  Keepalive set (10 sec)
>  Full Duplex, 1Gbps, media type is RJ45
>  output flow-control is XON, input flow-control is XON
>  ARP type: ARPA, ARP Timeout 04:00:00
>  Last input 00:00:01, output 00:00:00, output hang never
>  Last clearing of "show interface" counters never
>  Input queue: 0/75/183/0 (size/max/drops/flushes); Total output drops:
> 11857873
>  Queueing strategy: Class-based queueing
>  Output queue: 0/1000/0 (size/max total/drops)
>  5 minute input rate 776000 bits/sec, 597 packets/sec
>  5 minute output rate 1424000 bits/sec, 452 packets/sec
>     3382929345 packets input, 1301044716 bytes, 0 no buffer
>     Received 17456285 broadcasts (0 IP multicasts)
>     0 runts, 0 giants, 3 throttles
>     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
>     0 watchdog, 29307695 multicast, 0 pause input
>     2627620094 packets output, 4099699112 bytes, 0 underruns
>     163 output errors, 0 collisions, 1 interface resets
>     44 unknown protocol drops
>     0 babbles, 0 late collision, 0 deferred
>     169 lost carrier, 0 no carrier, 0 pause output
>     0 output buffer failures, 0 output buffers swapped out
> A#
> 
> 
> 
> 
> 
> 
> 
> 
> On Mon, Mar 10, 2014 at 5:31 PM, Darlington Ngaiso <ngaissod_at_gmail.com>wrote:
> 
>> Hi Guys
>> 
>> I have an Issue below and would  be glad if  you could assist.
>> 
>> nam-wdk-tel-ppe02#
>> 299740: *Mar 10 17:04:49: %LDP-5-GR: GR session 10.117.246.141:0 (inst.
>> 1): interrupted--recovery pending
>> 299741: *Mar 10 17:04:49: %LDP-5-NBRCHG: LDP Neighbor 10.117.246.141:0(0) is DOWN (Session KeepAlive Timer expired)
>> 
>> 299742: *Mar 10 17:04:53: %LDP-5-GR: GR session 10.117.246.141:0 (inst.
>> 2): starting graceful recovery
>> 299743: *Mar 10 17:04:53: %LDP-5-NBRCHG: LDP Neighbor 10.117.246.141:0(2) is UP
>> 
>> 299744: *Mar 10 17:06:30: %BGP-3-NOTIFICATION: sent to neighbor
>> 41.218.71.73 passive 6/0 (cease) 0 bytes
>> 
>> 299745: *Mar 10 17:07:53: %LDP-5-GR: GR session 10.117.246.141:0 (inst.
>> 2): completed graceful recovery
>> 299746: *Mar 10 17:07:53: %LDP-5-GR: GR session 10.117.246.141:0 (inst.
>> 2): interrupted--recovery pending
>> 299747: *Mar 10 17:07:53: %LDP-5-NBRCHG: LDP Neighbor 10.117.246.141:0(0) is DOWN (Session KeepAlive Timer expired)
>> 299748: *Mar 10 17:07:56: %LDP-5-GR: GR session 10.117.246.141:0 (inst.
>> 1): starting graceful recovery
>> 299749: *Mar 10 17:07:56: %LDP-5-NBRCHG: LDP Neighbor 10.117.246.141:0(1) is UP
>> 299750: *Mar 10 17:09:02: %BGP-3-NOTIFICATION: sent to neighbor
>> 41.218.71.73 passive 6/0 (cease) 0 bytes
>> 299751: *Mar 10 17:10:56: %LDP-5-GR: GR session 10.117.246.141:0 (inst.
>> 1): completed graceful recovery
>> 299752: *Mar 10 17:10:56: %LDP-5-GR: GR session 10.117.246.141:0 (inst.
>> 1): interrupted--recovery pending
>> 299753: *Mar 10 17:10:56: %LDP-5-NBRCHG: LDP Neighbor 10.117.246.141:0(0) is DOWN (Session KeepAlive Timer expired)
>> 
>> 299754: *Mar 10 17:11:01: %LDP-5-GR: GR session 10.117.246.141:0 (inst.
>> 4): starting graceful recovery
>> 299755: *Mar 10 17:11:01: %LDP-5-NBRCHG: LDP Neighbor 10.117.246.141:0(4) is UP
>> 299756: *Mar 10 17:11:35: %BGP-3-NOTIFICATION: sent to neighbor
>> 41.218.71.73 passive 6/0 (cease) 0 bytes
>> 299757: *Mar 10 17:14:01: %LDP-5-GR: GR session 10.117.246.141:0 (inst.
>> 4): completed graceful recovery
>> 299758: *Mar 10 17:14:01: %LDP-5-GR: GR session 10.117.246.141:0 (inst.
>> 4): interrupted--recovery pending
>> 299759: *Mar 10 17:14:01: %LDP-5-NBRCHG: LDP Neighbor 10.117.246.141:0(0) is DOWN (Session KeepAlive Timer expired)
>> 
>> 299760: *Mar 10 17:14:04: %LDP-5-GR: GR session 10.117.246.141:0 (inst.
>> 2): starting graceful recovery
>> 299761: *Mar 10 17:14:04: %LDP-5-NBRCHG: LDP Neighbor 10.117.246.141:0(2) is UP
>> 299762: *Mar 10 17:14:04: %LDP-5-GR: GR session 10.117.246.141:0 (inst.
>> 2): completed graceful recovery
>> 
>> 
>> When I ping from Side  A
>> 
>> I get the pattern below
>> 
>> ping  10.214.0.76 re 100 size 1496 df
>> Type escape sequence to abort.
>> Sending 100, 1496-byte ICMP Echos to 10.214.0.76, timeout is 2 seconds:
>> Packet sent with the DF bit set
>> !!!!.!!!!!!.!!!!!!.!!!!!!!.!!!!!!.!!!!!!.!!!!!!.!!!!!!.!!!!!!.!!!!!!.!
>> !!!!!.!!!!!!.!!!!!!.!!!!!.!!!!
>> Success rate is 86 percent (86/100), round-trip min/avg/max = 168/170/180
>> ms
>> 
>> But the ping from Side B is going through fine
>> 
>> ping  10.214.0.77 re 100 size 1496  df
>> 
>> Type escape sequence to abort.
>> Sending 100, 1496-byte ICMP Echos to 10.214.0.77, timeout is 2 seconds:
>> Packet sent with the DF bit set
>> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>> Success rate is 100 percent (100/100), round-trip min/avg/max =
>> 168/170/184 ms
>> 
>> A#sh mpls ldp neighbor 10.117.246.141 detail
>>    Peer LDP Ident: 10.117.246.141:0; Local LDP Ident 10.214.57.142:0
>>        TCP connection: 10.117.246.141.646 - 10.214.57.142.36408
>>        Password: not required, none, in use
>>        State: Oper; *Msgs sent/rcvd: 1424/2;* Downstream; Last TIB rev
>> sent 77971
>>        Up time: 00:00:50; UID: 19327; Peer Id 0;
>>        LDP discovery sources:
>>          GigabitEthernet0/1.304; Src IP addr: 10.214.0.76
>>            holdtime: 15000 ms, hello interval: 5000 ms
>>          Targeted Hello 10.214.57.142 -> 10.117.246.141, active, passive;
>>            holdtime: infinite, hello interval: 10000 ms
>>        Peer holdtime: 180000 ms; KA interval: 60000 ms; Peer state: estab
>>        Clients: Graceful Restart
>>        LDP Session Protection enabled, state: Ready
>>            duration: 86400 seconds
>>        Capabilities Sent:
>>          [ICCP (type 0x0405) MajVer 1 MinVer 0]
>>          [Dynamic Announcement (0x0506)]
>>          [Typed Wildcard (0x050B)]
>>        Capabilities Received:
>>          [ICCP (type 0x0405) MajVer 1 MinVer 0]
>>          [Dynamic Announcement (0x0506)]
>> A#
>> 
>> 
>> 
>> A#sh tcp brie | in  10.117.246.141
>> 71310EA4  10.214.57.142.11539         10.117.246.141.646          FINWAIT2
>> 712AF614  10.214.57.142.15104         10.117.246.141.646          FINWAIT2
>> 69F87444  10.214.57.142.25966         10.117.246.141.646          FINWAIT2
>> 69B3C8C0  10.214.57.142.36408         10.117.246.141.646          ESTAB
>> A#
>> 
>> 
>> Below is the config on the  interface
>> 
>> 
>> interface GigabitEthernet0/1.304
>> encapsulation dot1Q 304
>> ip address 10.214.0.77 255.255.255.254
>> ip ospf network point-to-point
>> ip ospf cost 10000
>> ip ospf mtu-ignore
>> mpls label protocol ldp
>> mpls ip
> 
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Received on Tue Mar 11 2014 - 07:47:31 ART

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