Hello all,
I have an implemented VASI interfaces on my ASR1001. Each of the vasiright and vasileft belong to different VRFs, and there is also a ZBF running along them. My question is regarding accounting. When I look at the accounting numbers, I can see one VASI getting Inputs and the other VASI getting Outputs. Why is this unidirectional, when actual traffic flow is bidirectional between the VASI interfaces.
ASR1001#show ip cef vrf CUSTOMER vasileft 500 detail
IPv4 CEF is enabled for distributed and running
VRF CUSTOMER
27 prefixes (27/0 fwd/non-fwd)
Table id 0xB
Database epoch: 0 (27 entries at this epoch)
0.0.0.0/0, epoch 0, flags [attached, default route]
5 packets, 536 bytes switched through the prefix
tmstats: external 0 packets, 0 bytes
internal 1 packets, 536 bytes
attached to vasileft500
ASR1001#show int vasileft500
MTU 9216 bytes, BW 10000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation UNKNOWN, loopback not set
Keepalive not set
Last input never, output never, output hang never
Last clearing of "show interface" counters 1w0d
Input queue: 0/375/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 0 bits/sec, 0 packets/sec
30 second output rate 2000 bits/sec, 1 packets/sec
46366 packets input, 7061914 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
866806 packets output, 55533710 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
If you look at the vasiright, we will see input, but no output. Is there any workaround this, or I just don't understand how the VASI traffic flow works.
It is as VASI left and right are two halves of the same interface. Is that how I should be looking at it?
Thanks,
Dino
