tBgpInstanceIgpShortcut

TIMETRA-BGP-MIB · .1.3.6.1.4.1.6527.3.1.2.14.2.2.1.56

Object

column obsolete r/w Bits
The bits of tBgpInstanceIgpShortcut identify the Layer-2 tunneling
mechanisms used for IGP shortcuts. If a bit is set, the corresponding
tunneling mechanism will be used to resolve paths to BGP next-hops.
              
The tunneling mechanisms represented by each bit are:
  te(0)  - RSVP Traffic Engineering
  ldp(1) - LDP /32 Route Forwarding Equivalence Class (FEC)
  ip(2)  - IP (IP-in-IP or GRE)
  mpls(3)- MPLS
  mpls-bgp(4)- MPLS with BGP label-route tunnel eligibility
              
Evaluation of tunnel preference is based on the following order, in
descending priority:
  1. Traffic Engineered Shortcut (RSVP-TE)
  2. LDP /32 Route FEC Shortcut
  3. IP Shortcut (IP-in-IP or GRE)
  4. Actual IGP Next-Hop.
              
The 'mpls' option instructs BGP to first attempt to resolve the BGP
next-hop to an RSVP LSP. If no RSVP LSP exists or the existing ones
are down, BGP automatically searches for the LDP LSP with a FEC prefix
corresponding to the same /32 prefix in the tunnel table and resolves
the BGP next-hop to it.
              
The 'mpls-bgp' option allows BGP to resolve the BGP next-hop using BGP
tunnels in TTM, but the order of preference (which cannot be changed)
is RSVP then LDP then BGP.
              
This object was obsoleted in release 13.0.

Context

MIB
TIMETRA-BGP-MIB
OID
.1.3.6.1.4.1.6527.3.1.2.14.2.2.1.56
Type
column
Access
readwrite
Status
obsolete
Parent
tBgpInstanceEntry
Table
tBgpInstanceTable
Siblings
69

Syntax

Bits

Values & Constraints

Enumerated Values
0te
1ldp
2ip
3mpls
4mpls-bgp

Related Objects

Sibling Objects