Users Guide

Usage Information None
Example
OS10# show ip policy map-name
Supported
Releases
10.3.0E or later
show route-map pbr-statistics
Displays the current PBR statistics.
Syntax
show route-map [map-name] pbr-statistics
Parameters map-name — (Optional) Enter the name of a configured route map. A maximum of 140 characters.
Defaults None
Command Mode EXEC
Usage Information None
Example
OS10# show route-map map1 pbr-statistics
Supported
Releases
10.3.0E or later
Virtual Router Redundancy Protocol
VRRP allows you to form virtual routers from groups of physical routers on your local area network (LAN). These virtual routing platforms
— master and backup pairs — provide redundancy in case of hardware failure. VRRP also allows you to easily configure a virtual router as
the default gateway to all your hosts and avoids the single point of failure of a physical router.
VRRP:
• Provides a virtual default routing platform
• Provides load balancing
• Supports multiple logical IP subnets on a single LAN segment
• Enables simple traffic routing without the single point of failure of a static default route
• Avoids issues with dynamic routing and discovery protocols
• Takes over a failed default router:
• Within a few seconds
• With a minimum of VRRP traffic
• Without any interaction from hosts
NOTE:
The default behavior of VRRP is active-active. If you want to use VRRP groups on VLANs and do not want the
VRRP backup gateway to forward traffic on behalf of the active VRRP gateway in a non-VLT setup, disable the VRRP
active-active feature using the no vrrp mode active-active command.
Configuration
VRRP specifies a master, or active, router that owns the next-hop IP and MAC address for end stations on a LAN. The master router is
chosen from the virtual routers by an election process and forwards packets sent to the next-hop IP address. If the master router fails,
VRRP begins the election process to choose a new master router which continues routing traffic.
VRRP packets transmit with the virtual router MAC address as the source MAC address. The virtual router MAC address associated with
a virtual router is in 00:00:5E:00:01:{VRID} format for IPv4 and 00:00:5E:00:02:{VRID} format for IPv6. The VRID is the virtual router
identifier that allows up to 255 IPv4 and IPv6 VRRP routers on a network. The first four octets are unquenchable, the last two octets are
01:{VRID} for IPv4 and 02:{VRID} for IPv6. The final octet changes depending on the VRRP virtual router identifier.
Basic VRRP Configuration
Layer 3
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