Cisco Catalyst 4500 series Administration Manual page 940

Configuration Examples for Bidirectional Forwarding Detection
MinTxInt: 50000, MinRxInt: 50000, Multiplier: 3
Received MinRxInt: 50000, Received Multiplier: 3
Holdown (hits): 150(0), Hello (hits): 50(1364284)
Rx Count: 1351813, Rx Interval (ms) min/max/avg: 28/64/49 last: 4 ms ago
Tx Count: 1364289, Tx Interval (ms) min/max/avg: 40/68/49 last: 32 ms ago
Registered protocols: EIGRP
Uptime: 18:42:45
Last packet: Version: 0
OurAddr
172.16.1.1
Session state is UP and using echo function with 50 ms interval.
Local Diag: 0, Demand mode: 0, Poll bit: 0
MinTxInt: 1000000, MinRxInt: 1000000, Multiplier: 3
Received MinRxInt: 1000000, Received Multiplier: 3
Holdown (hits): 3000(0), Hello (hits): 1000(317)
Rx Count: 305, Rx Interval (ms) min/max/avg: 1/1016/887 last: 448 ms ago
Tx Count: 319, Tx Interval (ms) min/max/avg: 1/1008/880 last: 532 ms ago
Registered protocols: EIGRP
Uptime: 00:04:30
Last packet: Version: 1
The output from the show bfd neighbors details command on SwitchB verifies that BFD sessions have
been created and that EIGRP is registered for BFD support. As previously noted, SwitchA runs BFD
Version 1, therefore echo mode is running, and SwitchC runs BFD Version 0, so echo mode does not run.
The relevant command output is shown in bold.
SwitchB
SwitchB# show bfd neighbors details
OurAddr
172.16.1.2
Session state is UP and using echo function with 50 ms interval.
Local Diag: 0, Demand mode: 0, Poll bit: 0
MinTxInt: 1000000, MinRxInt: 1000000, Multiplier: 3
Received MinRxInt: 1000000, Received Multiplier: 3
Holdown (hits): 3000(0), Hello (hits): 1000(337)
Rx Count: 341, Rx Interval (ms) min/max/avg: 1/1008/882 last: 364 ms ago
Tx Count: 339, Tx Interval (ms) min/max/avg: 1/1016/886 last: 632 ms ago
Registered protocols: EIGRP
Uptime: 00:05:00
Last packet: Version: 1
OurAddr
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)SG
39-20
- Diagnostic: 0
I Hear You bit: 1 - Demand bit: 0
Poll bit: 0 - Final bit: 0
Multiplier: 3 - Length: 24
My Discr.: 3 - Your Discr.: 5
Min tx interval: 50000
Min Echo interval: 0
LD/RD RH/RS
NeighAddr
172.16.1.2 6/1
- Diagnostic: 0
State bit: Up - Demand bit: 0
Poll bit: 0 - Final bit: 0
Multiplier: 3 - Length: 24
My Discr.: 1 - Your Discr.: 6
Min tx interval: 1000000
Min Echo interval: 50000
NeighAddr LD/RD RH/RS
172.16.1.1 1/6
- Diagnostic: 0
State bit: Up - Demand bit: 0
Poll bit: 0 - Final bit: 0
Multiplier: 3 - Length: 24
My Discr.: 6 - Your Discr.: 1
Min tx interval: 1000000
Min Echo interval: 50000
NeighAddr LD/RD RH/RS
Chapter 39 Configuring Bidirection Forwarding Detection
- Min rx interval: 50000
Holdown(mult) State
Up 0 (3 ) Up
- Min rx interval: 1000000
Holdown(mult) State
Up 0 (3 ) Up
- Min rx interval: 1000000
Holdown(mult) State
Int
Gi6/1
Int
Gi6/1
Int
OL_28731-01