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Strange inteface IP not pingable

We have a ASR 9K router which has below inteface. Interface is up but IP to its intrafce is not pingable.This is something weird behaviour as IP should ping intrface is up. Below are the details. Please give ur suggestion i believe its a intrafce issue or bug

 

RP/0/RSP0/CPU0:ITV-GRW-CSH-CR-RTR1A#show int des | i LDS
Mon Jan 19 20:07:15.519 GMT
Te0/1/0/5          up          up          *** TENGE -to- ITV-LDS-CSH-CR-RTR1A TENGE-1/2 ***
Te0/1/0/5.200      up          up          *** DOT1Q -to- ITV-LDS-CSH-CR RTR1A VLAN-200 -for- MEDIA CONTENT ***
Te0/1/0/5.250      up          up          *** DOT1Q -to- ITV-LDS-CSH-CR RTR1A VLAN-250 -for- GRT ***
Te0/1/0/5.300      up          up          *** DOT1Q -to- ITV-LDS-CSH-CR RTR1B VLAN-300 -for- CORP ***
RP/0/RSP0/CPU0:ITV-GRW-CSH-CR-RTR1A#show runn int Te0/1/0/5.300
Mon Jan 19 20:07:24.901 GMT
interface TenGigE0/1/0/5.300
 description *** DOT1Q -to- ITV-LDS-CSH-CR RTR1B VLAN-300 -for- CORP ***
 mtu 9198
 vrf CORP
 ipv4 address 10.10.14.1 255.255.255.252
 encapsulation dot1q 300
!

 

RP/0/RSP0/CPU0:ITV-GRW-CSH-CR-RTR1A#ping vrf CORP 10.10.14.1
Mon Jan 19 20:07:35.035 GMT
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.10.14.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
RP/0/RSP0/CPU0:ITV-GRW-CSH-CR-RTR1A#show runn int Te0/1/0/5.250
Mon Jan 19 20:07:56.375 GMT
interface TenGigE0/1/0/5.250
 description *** DOT1Q -to- ITV-LDS-CSH-CR RTR1A VLAN-250 -for- GRT ***
 ipv4 address 10.10.18.1 255.255.255.252
 encapsulation dot1q 250
!

RP/0/RSP0/CPU0:ITV-GRW-CSH-CR-RTR1A#ping 10.10.18.1
Mon Jan 19 20:12:48.623 GMT
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.10.18.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)

!

RP/0/RSP0/CPU0:ITV-GRW-CSH-CR-RTR1A#show runn int Te0/1/0/5.200
Mon Jan 19 20:11:44.702 GMT
interface TenGigE0/1/0/5.200
 description *** DOT1Q -to- ITV-LDS-CSH-CR RTR1A VLAN-200 -for- MEDIA CONTENT ***
 vrf CONTENT
 ipv4 address 10.10.12.1 255.255.255.252
 encapsulation dot1q 200
!

 

RP/0/RSP0/CPU0:ITV-GRW-CSH-CR-RTR1A#ping vrf CONTENT 10.10.12.1
Mon Jan 19 20:11:54.614 GMT
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.10.12.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)

!

RP/0/RSP0/CPU0:ITV-GRW-CSH-CR-RTR1A#show runn int Te0/1/0/5
Mon Jan 19 20:13:53.153 GMT
interface TenGigE0/1/0/5
 description *** TENGE -to- ITV-LDS-CSH-CR-RTR1A TENGE-1/2 ***
 cdp
 mtu 9194
 dampening
!

RP/0/RSP0/CPU0:ITV-GRW-CSH-CR-RTR1A#show int Te0/1/0/5
Mon Jan 19 20:14:10.687 GMT
TenGigE0/1/0/5 is up, line protocol is up
  Interface state transitions: 223
  Dampening enabled: penalty 0, not suppressed
    half-life:        1        reuse:             750
    suppress:         2000     max-suppress-time: 4
    restart-penalty:  0
  Hardware is TenGigE, address is 4055.395e.e96d (bia 4055.395e.e96d)
  Layer 1 Transport Mode is LAN
  Description: *** TENGE -to- ITV-LDS-CSH-CR-RTR1A TENGE-1/2 ***
  Internet address is Unknown
  MTU 9194 bytes, BW 10000000 Kbit (Max: 10000000 Kbit)
     reliability 255/255, txload 0/255, rxload 0/255
  Encapsulation ARPA,
  Full-duplex, 10000Mb/s, SR, link type is force-up
  output flow control is off, input flow control is off
  loopback not set,
  ARP type ARPA, ARP timeout 04:00:00
  Last input 00:00:00, output 00:00:00
  Last clearing of "show interface" counters 1y18w
  5 minute input rate 1000 bits/sec, 3 packets/sec
  5 minute output rate 0 bits/sec, 1 packets/sec
     257314148754 packets input, 296942262349046 bytes, 1442868 total input drops
     1418648 drops for unrecognized upper-level protocol
     Received 307 broadcast packets, 32050775240 multicast packets
              1 runts, 0 giants, 0 throttles, 0 parity
     82 input errors, 71 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     219424706733 packets output, 173469893819876 bytes, 0 total output drops
     Output 170 broadcast packets, 7287295404 multicast packets
     0 output errors, 0 underruns, 0 applique, 0 resets
     0 output buffer failures, 0 output buffers swapped out
     116 carrier transitions

 


RP/0/RSP0/CPU0:ITV-GRW-CSH-CR-RTR1A#show int Te0/1/0/5.3000
Mon Jan 19 20:14:15.863 GMT
Interface not found (TenGigE0/1/0/5.3000)

 

RP/0/RSP0/CPU0:ITV-GRW-CSH-CR-RTR1A#show int Te0/1/0/5.300
Mon Jan 19 20:14:19.266 GMT
TenGigE0/1/0/5.300 is up, line protocol is up
  Interface state transitions: 221
  Hardware is VLAN sub-interface(s), address is 4055.395e.e96d
  Description: *** DOT1Q -to- ITV-LDS-CSH-CR RTR1B VLAN-300 -for- CORP ***
  Internet address is 10.10.14.1/30
  MTU 9198 bytes, BW 10000000 Kbit (Max: 10000000 Kbit)
     reliability 195/255, txload 0/255, rxload 0/255
  Encapsulation 802.1Q Virtual LAN, VLAN Id 300,  loopback not set,
  ARP type ARPA, ARP timeout 04:00:00
  Last input 00:00:00, output 00:00:00
  Last clearing of "show interface" counters 1y18w
  5 minute input rate 0 bits/sec, 1 packets/sec
  5 minute output rate 0 bits/sec, 1 packets/sec
     108888321451 packets input, 109507909384420 bytes, 32443845 total input drops
     21278820 drops for unrecognized upper-level protocol
     Received 48 broadcast packets, 31994628167 multicast packets
     46512587092 packets output, 40110751453941 bytes, 204 total output drops
     Output 0 broadcast packets, 7276506807 multicast packets

1 REPLY
New Member

You are trying to ping VRF

You are trying to ping VRF interfaces from GRT (global routing table) which I believe may not have visibility/routing into the VRF's hence the timeouts.  The source interface used by the router may also not have visibility into the VRF's.

 

Try extended pings with 'source' interface where it has visibility in to the VRFs.

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