Hi Folks,
New and Changed Features/enhancements to existing features in Junos OS Release 15.1F5 for the PTX Series.
MPLS
Support for IS-IS segment routing (PTX Series)—Starting with Junos OS Release 15.1F5, IS-IS segment routing support is enabled through MPLS. Currently, label advertisements are supported for IS-IS only. IS-IS creates an adjacency segment per adjacency, per level, and per address family (one each for IPv4 and IPv6). Junos OS IS-IS implementation allocates node segment label blocks in accordance with the IS-IS protocol extensions for supporting segment routing node segments and provides a mechanism to the network operator to provision an IPv4 or IPv6 address family node segment index. To configure segment routing, use the following configuration statements at the [edit protocols isis] hierarchy level:
no-advertise-adjacency-segment—Disable advertising of the adjacency segment on all levels for a specific interface.
node-segment—Enable source packet routing at all levels.
source-packet-routing—Enable the source packet routing feature.
use-source-packet-routing—Enable use of source packet routing node segment labels for computing backup paths for normal IPv4 or IPv6 IS-IS prefixes and primary IS-IS source packet routing node segments.