Supported Platforms
Related Documentation
- ACX, M, MX, PTX, T Series
- Example: Disabling Normal TTL Decrementing in a VRF Routing Instance
- ACX, M, PTX, T Series
- Disabling Normal TTL Decrementing in the Junos OS MPLS Applications Configuration Guide
vrf-propagate-ttl
Syntax
Hierarchy Level
Release Information
Statement introduced in Junos OS Release 10.4.
Description
Enable normal time-to-live (TTL) decrementing in a VRF routing instance. You configure this statement once per routing instance, and it affects only RSVP-signaled or LDP-signaled LSPs in the routing instance. When this router acts as an ingress router for an LSP, it pushes an MPLS copies the TTL value from the IP packet header. When the router acts as the penultimate router, it pops the MPLS header and writes the MPLS TTL into the IP packet.
Default
Normal TTL decrementing enabled; the TTL field value is decremented by 1 as the packet passes through each label-switched router in the LSP. This statement explicitly configures the default behavior for the VRF routing instance and is useful for overriding the no-propagate-ttl configured globally on the router at the [edit protocols mpls] hierarchy level.
Required Privilege Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Related Documentation
- ACX, M, MX, PTX, T Series
- Example: Disabling Normal TTL Decrementing in a VRF Routing Instance
- ACX, M, PTX, T Series
- Disabling Normal TTL Decrementing in the Junos OS MPLS Applications Configuration Guide
Published: 2013-02-28
Supported Platforms
Related Documentation
- ACX, M, MX, PTX, T Series
- Example: Disabling Normal TTL Decrementing in a VRF Routing Instance
- ACX, M, PTX, T Series
- Disabling Normal TTL Decrementing in the Junos OS MPLS Applications Configuration Guide
