What is the difference between RPL and route-maps?

Question

Options

• AUnlike RPL, route-maps are supported with IPv4 address families only.
• BUnlike route-maps, only RPL supports extcommunity sets to group extended communities.
• CUnlike RPL, route-maps are designed for BGP protocol only.
• DUnlike route-maps, only RPL is designed for bulk configuration of multiple devices.

• B
  94% (30)
• C
  3% (1)
• D
  3% (1)

Explanation

RPL (Routing Policy Language) is the policy language used in Cisco IOS XR, while route-maps are used in Cisco IOS/IOS-XE. A key functional difference is that RPL natively supports named extcommunity sets - predefined, reusable groups of BGP extended communities that can be referenced by name across multiple policies. Route-maps in IOS do not have an equivalent construct; you must inline extended community values directly in each route-map entry, which is less scalable. Option A is false because route-maps support both IPv4 and IPv6 address families. Option C is false because route-maps are used in many contexts beyond BGP - including OSPF redistribution, policy-based routing, and NAT. Option D is false because neither RPL nor route-maps are device-provisioning tools; both are single-device policy constructs. The extcommunity-set capability in RPL is a genuine differentiator for scalable BGP policy management.

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