Brocade Communications Systems Layer 3 Routing Configuration ICX 6650 User Manual
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Brocade ICX 6650 Layer 3 Routing Configuration Guide
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Basic VRRP parameter configuration
By default, Backup routers do not send Hello messages to advertise themselves to the Master. The
advertise backup command is used to enable a Backup router to send Hello messages to the
Master.
Configuration considerations for IPv6 VRRP v3 and
IPv6 VRRP-E v3 support on Brocade devices
Consider the following when enabling IPv6 VRRP v3 mode and IPv6 VRRP-E v3 mode on devices:
•
You can configure only one protocol (Layer 3 VSRP, VRRP, or VRRP-E) on a router at a single
time. However, VRRP or VRRP-E can be configured with IPv4 and IPv6 concurrently on a router.
•
Scale timer configuration does not affect timer values, nor does it scale timer values for virtual
routers configured with sub-second time values for IPv6 VRRP and IPv4 VRRP v3 modes.
•
Abdication of a VRRP Owner router in an IPv6 environment is not supported. Abdication of an
Owner router is a Brocade-specific enhancement to VRRP. Abdication of an Owner router is
possible by changing the Owner’s priority, or by configuring track ports for an Owner router.
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For IPv6 VRRP v3 only, the tracking port configuration is not allowed if the router is
configured as the VRRP Owner. This conforms to RFC 5798.
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For the IPv6 VRRP v3 Owner router only, the priority configuration is not allowed. The
Owner router priority is always 255. This conforms to RFC 5798.
•
Hitless switchover is not supported for IPv6 VRRP and IPv6 VRRP-E environments.
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Interoperability is not supported for a VRID when VRRP routers are configured as VRRP v2 or
v3.
•
Brocade does not recommend that you re-use the same VRID across IPv6 VRRP-E and IPv4
VRRP-E if they are in the same broadcast domain.
•
There is no specified restriction for configuring VRRP or VRRP-E instances if they are within the
maximum VRID range. The maximum number of supported VRRP or VRRP-E router instances is
254 for IPv4 environments. The maximum number of supported VRRP or VRRP-E router
instances is 128 for IPv6 environments.