6-10
Cisco CRS-1 Series Carrier Routing System Getting Started Guide
Chapter 6 Managing Cisco IOS XR Software Packages
Overview of Software Packages
Package Installation Envelope Files
PIE files, are nonbootable files that can be used to upgrade a router or add software packages to the
router. A PIE may contain a single package or a set of packages (called a composite package). Because
the files are nonbootable, they must be installed and activated on a running router. PIE files have a .pie
extension. When a PIE file contains software for a specific bug fix, it is called a Software Maintenance
Update (SMU).
Routing
Routing
protocols
(BGP, OSPF,
IS-IS), RIB
and routing
policy engine
• MP-BGP v4
• OSPFv2 and OSPFv3
• IS-IS
• Static routes
• Route policy language (RPL)
• BTSH
• Conditional route injection (conditional advertisement)
• Exponential backoff shortest path first (SPF) algorithm support
• Extended community
• Filter prefixes on a per-peer basis for inbound and outbound prefix advertisement
• Graceful restart with NSF (Cisco implementation and IS-IS)
• MD5 authentication
• MPLS TE support—intra-area
• Multipath support for eBGP
• Multiple RIB table support for AFI and SAFI
• Name-based community set
• Next-hop propagation
• Prioritized RIB update
• RIB standby-capable
• RIB support redistribution
• Route dampening
• Route redistribution (IS-IS and OSPFv3)
• Route map
• Show advertised routes
Table 6-2 Required Packages Included in the Cisco IOS XR Unicast Routing Core Bundle
Package
Name Features
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