set protocols bfd multihop peer local-address minimum-ttl
- Tracy Yang
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The set protocols bfd multihop peer local-address minimum-ttl command configures the minimum expected TTL for an incoming BFD control packet for a multi-hop BFD session.
The delete protocols bfd multihop peer local-address minimum-ttl command sets the configuration to the default value.
Command Syntax
set protocols bfd multihop [vrf <vrf-name>] peer<peer-ip> local-address <local-ip> minimum-ttl <minimum-ttl>
Parameter
Parameter | Description |
vrf <vrf-name> | Optional. Specifies a VRF name. The value is a string. It’s a user-defined VRF set by the command set ip vrf <vrf-name> [description <string>]. |
| peer <peer-ip> | Specifies the peer for a BFD session. The value is an IPv4 or IPv6 address. |
| local-address <local-ip> | Specifies a local address used to send the packets. The value is an IPv4 or IPv6 address. |
minimum-ttl <minimum-ttl> | Specifies the minimum expected TTL. Range: 1 to 254. |
Usage Guidelines
This feature serves the purpose of thightening the packet validation requirements to avoid receiving BFD control packets from other sessions.
Note that: This feature is for multi-hop sessions only.
Example
- Configure the minimum expected TTL to 252.
admin@Xorplus# set protocols bfd multihop peer 2.2.2.2 local-address 2.2.2.3 minimum-ttl 252 admin@Xorplus# commit
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