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Brocade Communications Systems FastIron X Series User Manual

Brocade Communications Systems FastIron X Series
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VRRP and VRRP-E
• Overview.............................................................................................................................................................................................................507
• VRRP and VRRP-E overview....................................................................................................................................................................507
• Comparison of VRRP and VRRP-E.......................................................................................................................................................513
• VRRP and VRRP-E parameters.............................................................................................................................................................. 514
• Basic VRRP parameter conguration....................................................................................................................................................518
• Basic VRRP-E parameter conguration...............................................................................................................................................526
• Additional VRRP and VRRP-E parameter conguration...............................................................................................................528
• Forcing a Master router to abdicate to a Backup router.................................................................................................................539
• Accept mode for backup VRRP devices.............................................................................................................................................. 540
• Displaying VRRP and VRRP-E information........................................................................................................................................542
• Conguration examples............................................................................................................................................................................... 554
Overview
This chapter describes how to congure Brocade Layer 3 switch with the following router redundancy protocols:
• Virtual Router Redundancy Protocol (VRRP) - The standard router redundancy protocol described in RFC 2338. The FastIron
devices support VRRP version 2 (v2) and VRRP version 3 (v3). VRRP v2 supports the IPv4 environment, and VRRP v3
supports the IPv4 and IPv6 environments. Conguring VRRPv3 for IPv4 enables the code for a version compatible with RFC
5798. VRRPv3 has no authentication mechanism and the advertisement interval uses dierent metrics and range.
• VRRP Extended (VRRP-E) - An enhanced version of VRRP that overcomes limitations in the standard protocol. The FastIron
devices support VRRP-E v2 and VRRP-E v3. VRRP-E v2 supports the IPv4 environment, and VRRP-E v3 supports the IPv6
environment.
NOTE
VRRP and VRRP-E are separate protocols. You cannot use them together.
NOTE
You can use a Brocade Layer 3 switch congured for VRRP with another Brocade device or a third-party router that is also
congured for VRRP. However, you can use a Brocade device congured for VRRP-E only with another Brocade Layer 3
switch that also is congured for VRRP-E.
NOTE
The maximum number of supported VRRP or VRRP-E router instances is 255 for IPv4 environments. The maximum number
of supported VRRP or VRRP-E router instances is 128 for IPv6 environments.
VRRP and VRRP-E overview
The following sections describe VRRP and VRRP-E. The protocols both provide redundant paths for IP addresses. However, the
protocols
dier in a few important ways. For clarity, each protocol is described separately.
VRRP overview
Virtual Router Redundancy Protocol (VRRP) 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.
FastIron Ethernet Switch Layer 3 Routing
53-1003627-04 507

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Brocade Communications Systems FastIron X Series Specifications

General IconGeneral
BrandBrocade Communications Systems
ModelFastIron X Series
CategorySwitch
LanguageEnglish

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