Bootp/Dhcp Relay Agent; Virtual Router Redundancy Protocol (Vrrp); Router Discovery - Fujitsu Siemens Computers PRIMERGY BX Description

Start up and Configuration the Ethernet Switch Module
RIPv2 defined in RFC 1723
- The RIP routing messages are extended to include subnet mask and gateway
information.
- For network traffic, the RIP routing message is sent to a multicast address.
- Add an authentication scheme to improve security for updating route tables.
RIPv2 enhancements defined in RFC 2453
- An implementation of RIP must use simple split horizon and use spilt horizon with
poisoned reverse.
- An implementation of RIP must implement triggered update for deleted routes and may
implement triggered updates for new routes or change of routes. RIP implementations
must also limit the rate at which triggered updates may be transmitted.
- An implementation of RIP should support host routes.
The PRIMERGY BX600 Managed Switch supports both versions of RIP.

BOOTP/DHCP Relay Agent

In the majority of network configurations, BOOTP/DHCP clients and their associated
servers do not reside on the same IP network or subnet. Therefore, some kind of third-party
agent is required to transfer BOOTP/DHCP messages between clients and servers. Such an
agent is known as a "BOOTP/DHCP relay agent".
PRIMERGY BX600 Relay Agent also will support to relays BOOTP and DHCP requests.
The agent relays requests from a subnet without a BOOTP/DHCP server to a server or
next-hop agent on another subnet. BOOTP/DHCP relay agent only processes BOOTP/DHCP
messages and generates new BOOTP/DHCP messages as a result.

Virtual Router Redundancy Protocol (VRRP)

PRIMERGY BX600 supports Virtual Router Redundancy Protocol (VRRP) is designed to
provide backup for the failing router without requiring any action on the part of the end station.
It is based on the concept of having more than one router recognize the same IP address. One
of the routers is elected the "master" router and handles all traffic sent to the specified virtual
router IP address. If the master router fails, one of the backup routers will be elected in its place,
and will start handling traffic sent to the address. This change will be transparent to end
stations.
VRRP increases the availability of the default path without requiring configuration of
dynamic routing or router discovery protocols on every end station. The greater default path
availability is accomplished by using any of the virtual router IP addresses on the LAN as the
default first hop router for the end stations. Multiple virtual routers can be defined on a single
router interface on, but only one IP address can be assigned to a given virtual router.

Router Discovery

The router discovery messages do not constitute a routing protocol. Instead, the router
discovery messages enable hosts to discover the existence of neighboring routers through the
use of router advertisement. Router advertisement is unsuitable for determining the best route
to a particular destination. If a host chooses a poor first-hop router for a particular destination, it
should receive an Internet Control Message Protocol (ICMP) Redirect from that router,
identifying a better one.
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Configuration the Switch Blade Module
Lan Switch and Router Blade