Overview of vrrp, Standard vrrp – Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) User Manual
Page 802

774
Multi-Service IronWare Routing Configuration Guide
53-1003033-02
Overview of VRRP
This chapter describes how to configure the following router redundancy protocols:
•
Virtual Router Redundancy Protocol (VRRP) – The standard router redundancy protocol. There
are two versions of the protocol. VRRP v2 supports the IPv4 environment and VRRP v3
supports the IPv4 and IPv6 environments.
•
VRRP Extended (VRRP-E) – A proprietary version of VRRP that overcomes limitations in the
standard protocol. This protocol works only with Brocade IP devices. The devices support
VRRP-E version 2 and VRRP-E version 3. VRRP-E v2 supports the IPv4 environment and
VRRP-E v3 supports the IPv6 environment.
NOTE
The maximum number of configured VRRP and VRRP-E instances on a Brocade NetIron XMR or
Brocade MLX series device is 2000. However, only 255 instances of VRRP v3 are supported with a
sub-second hello interval, and VRRP-E is supported with the scale timer.
The maximum number of configured VRRP and VRRP-E instances on Brocade NetIron CES and
Brocade NetIron CER devices is 255.
Overview of VRRP
This section presents the standard VRRP options and the options that were added in its
implementation of VRRP.
Standard VRRP
VRRP is an election protocol that provides redundancy to routers within a LAN. VRRP allows you to
provide alternate router paths for a host without changing the IP address or MAC address by which
the host knows its gateway. Consider the situation shown in
VRRP-Extended
Slow Start
Yes
Yes
Yes
Yes
Yes
Yes
Yes
VRRP-Extended
Scale Timer
Yes
Yes
Yes
Yes
Yes
Yes
Yes
VRRP-E
Extension for
Server
Virtualization
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Virtual MAC
address per
VRID
Yes
Yes
Yes
Yes
Yes
Yes
Yes
TABLE 169
Supported Brocade VRRP and VRRP-E features (Continued)
Features
supported
Brocade
NetIron XMR
Series
Brocade
MLX Series
Brocade
NetIron CES
2000
Series
BASE
package
Brocade
NetIron CES
2000 Series
ME_PREM
package
Brocade
NetIron CES
2000
Series
L3_PREM
package
Brocade
NetIron CER
2000 Series
Base
package
Brocade
NetIron CER
2000 Series
Advanced
Services
package