CHAPTER 1
New and Changed Routing Features
This table summarizes the new and changed feature information for the Routing Configuration Guide for
Cisco NCS 5500 Series Routers, and tells you where they are documented.
• New and Changed Routing Features, on page 1
New and Changed Routing Features
Table 2: Routing Features Added or Modified in IOS XR Release 6.3.x
Where DocumentedChanged in ReleaseDescriptionFeature
Implementing Static
Routes, on page 191
Release 6.3.1IP multicast static routes
(mroutes) allow you to
have multicast paths
diverge from the unicast
paths. When using
Protocol Independent
Multicast (PIM), the
router expects to receive
packets on the same
interface where it sends
unicast packets back to
the source. This
expectation is beneficial
if your multicast and
unicast topologies are
congruent. However, you
might want unicast
packets to take one path
and multicast packets to
take another.
IPv4 Multicast Static
Routes
Routing Configuration Guide for Cisco NCS 5500 Series Routers, IOS XR Release 6.3.x
1