HP PROCURVE 6208M-SX Installation And Getting Started Manual: Server Redundancy Protocol (srp)

Hewlett-packard switch user manual.
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For more details on VRRP and its configuration, see the "Configuring VRRP and VRRPE" chapter in the
Advanced Configuration and Management Guide.
VRRP Extended (VRRP)
VRRPE is an HP protocol that provides the benefits of VRRP without the limitations. In fact, VRRPE combines the
benefits of HP's VRRP and SRP. VRRPE is unlike VRRP and is like SRP in the following ways:
There is no "Owner" router. You do not need to use an IP address configured on one of the routing switches
as the virtual router ID (VRID), which is the address you are backing up for redundancy. The VRID is
independent of the IP interfaces configured in the routing switches. As a result, the protocol does not have an
"Owner" as VRRP does.
There is no restriction on which router can be the default master router. In VRRP, the "Owner" (the routing
switch on which the IP interface that is used for the VRID is configured) must be the default Master.
HP routing switches configured for VRRPE can interoperate only with other HP routing switches.
For more details on VRRP and its configuration, see the "Configuring VRRP and VRRPE" chapter in the
Advanced Configuration and Management Guide.

Server Redundancy Protocol (SRP)

In addition to VRRP, HP routing switches continue to provide support for redundant router configurations through
HP's proprietary protocol, Standby Router Protocol (SRP). SRP provides many of the same features as HP's
implementation of VRRP, but SRP can be used only with HP routing switches.
HP routing switch software continues to provide SRP support for backward compatibility on routing switches that
are already configured to use the protocol. If you have routing switches that are running SRP, you do not need to
reconfigure them for VRRP. However, if you are planning to configure your HP routing switches to use a
redundancy protocol, Hewlett-Packard recommends that you use VRRP. Using VRRP allows you to include third­
party routers in the virtual router.
NOTE: Hewlett-Packard recommends that you do not use VRRP and SRP on the same device.
NOTE: The virtual interface feature might not be supported on third-party routers. See the documentation for
those routers for information.
For more details on SRP and its configuration, see the "Configuring SRP" chapter in the Advanced Configuration
and Management Guide.
Software Overview
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