Re: LDP goes down every 3mins

From: Darlington Ngaiso <ngaissod_at_gmail.com>
Date: Tue, 11 Mar 2014 09:26:36 +0200

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 - 09:26:36 ART

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