Creating a BFD for Link-Bundle Session
BFD for link-bundle sessions is used to detect faults on Layer 3 Eth-Trunk member links.
Context
A BFD for link-bundle session consists of one main session and several sub-sessions. The number of sub-sessions is determined by the number of member interfaces of an Eth-Trunk interface bound to the BFD for link-bundle session. You do not need to configure local or remote discriminators for the main session and sub-sessions. Sub-sessions are dynamic single-hop sessions and their discriminators are determined by devices on both ends through negotiation. The main session collects the detection status of sub-sessions and determines the status of the Eth-Trunk interface. The main session does not participate in link fault detection. Main session discriminators are generated by the local system and are used for session management only.
Procedure
- Configure a BFD for link-bundle session to detect IPv4 Eth-Trunk faults.
- Run bfd session-name bind link-bundle [ compatible-mode ] peer-ip ip-address [ vpn-instance vpn-name ] interface {interface-name|interface-type interface-number }source-ip ip-address [ unshared-mode ]
A BFD for link-bundle session is created.
A BFD for link-bundle session can work in shared or unshared mode.- If you specify unshared-mode, a BFD for link-bundle session works in unshared mode. In this mode, a BFD for link-bundle session for detecting a link is independent of a dynamic BFD session for detecting the link.
- If you do not specify unshared-mode, a BFD for link-bundle session works in shared mode. In this mode, a BFD for link-bundle session for detecting a link is dependent of a dynamic BFD session for detecting the link.
- Run bfd session-name bind link-bundle [ compatible-mode ] peer-ip ip-address [ vpn-instance vpn-name ] interface {interface-name|interface-type interface-number }source-ip ip-address [ unshared-mode ]
- Configure a BFD for link-bundle session to detect IPv6 Eth-Trunk faults.
- Run bfd session-name bind link-bundle [ compatible-mode ] peer-ipv6 ipv6-address [ vpn-instance vpn-name ] interface interface-type interface-number source-ipv6 ipv6-address [ unshared-mode ]
A BFD for link-bundle session is created.
A BFD for link-bundle session can work in shared or unshared mode.- If you specify unshared-mode, a BFD for link-bundle session works in unshared mode. In this mode, a BFD for link-bundle session for detecting a link is independent of a dynamic BFD session for detecting the link.
- If you do not specify unshared-mode, a BFD for link-bundle session works in shared mode. In this mode, a BFD for link-bundle session for detecting a link is dependent of a dynamic BFD session for detecting the link.
- Run bfd session-name bind link-bundle [ compatible-mode ] peer-ipv6 ipv6-address [ vpn-instance vpn-name ] interface interface-type interface-number source-ipv6 ipv6-address [ unshared-mode ]