Connectivity Guide

Example
OS10# show bfd neighbors
* - Active session role
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LocalAddr RemoteAddr Interface State Rx-int Tx-int Mult VRF Clients
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* 150.150.1.2 150.150.1.1 vlan10 up 1000 1000 5 default bgp
OS10# show bfd neighbors detail
Session Discriminator: 1
Neighbor Discriminator: 2
Local Addr: 150.150.1.2
Local MAC Addr: 90:b1:1c:f4:ab:fd
Remote Addr: 150.150.1.1
Remote MAC Addr: 90:b1:1c:f4:a4:d4
Interface: vlan10
State: up
Configured parameters:
TX: 1000ms, RX: 1000ms, Multiplier: 5
Actual parameters:
TX: 1000ms, RX: 1000ms, Multiplier: 5
Neighbor parameters:
TX: 200ms, RX: 200ms, Multiplier: 49
Role: active
VRF: default
Client Registered: bgp
Uptime: 01:58:09
Statistics:
Number of packets received from neighbor: 7138
Number of packets sent to neighbor: 7138
show bfd neighbors
* - Active session role
------------------------------------------------------------------------------------------------------------------------------------------
LocalAddr RemoteAddr Interface State RxInt TxInt Mult VRF Clients
---------------------------------------------------------------------------------------------------------------------------------------*
100.1.3.2 100.1.3.1 vlan102 up 200 200 3 default ospfv2
* 100.1.4.2 100.1.4.1 vlan103 up 200 200 3 default ospfv2
* 100.1.5.2 100.1.5.1 vlan104 up 200 200 3 default ospfv2
* 100.1.6.2 100.1.6.1 vlan105 up 200 200 3 default ospfv2
* 100.1.7.2 100.1.7.1 vlan106 up 200 200 3 default ospfv2
* 100.1.8.2 100.1.8.1 vlan107 up 1000 1000 3 default ospfv2
* 100.1.9.2 100.1.9.1 vlan108 up 200 200 3 default ospfv2
Supported releases
10.4.1.0 or later
Border Gateway Protocol
Border Gateway Protocol (BGP) is an interautonomous system routing protocol that transmits interdomain routing information within and
between autonomous systems (AS). BGP exchanges network reachability information with other BGP systems. BGP adds reliability to
network connections by using multiple paths from one router to another. Unlike most routing protocols, BGP uses TCP as its transport
protocol.
Autonomous systems
BGP autonomous systems are a collection of nodes under a single administration with shared network routing policies. Each AS has a
number, which an Internet authority assigns—you do not assign the BGP number.
The Internet Assigned Numbers Authority (IANA) identies each network with a unique AS number (ASN). AS numbers 64512 through
65534 are reserved for private purposes. AS numbers 0 and 65535 cannot be used in a live environment. IANA assigns valid AS numbers in
the range of 1 to 64511.
Layer 3
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