HP ProCurve 1600M Handbuch für Rezensenten - Seite 11

HP ProCurve Routing Switch 9308M / 9304M Reviewer's Guide

2.3 Layer 3 Services

Routing for both IP and IPX is done in ASIC hardware at wire speed. AppleTalk routing is done by the

processor at a rate up to 300,000 pps. Routing services can be applied two different ways:

The router is directly assigned to specific ports – these ports look like traditional router ports,

where each port is in its own IP subnet or IPX network

A group of ports are assigned to a VLAN and tied to a virtual router interface inside the routing

switch – externally these ports are switched together (since they are in the same VLAN) and are all

in the same IP subnet or IPX network. Internal to the routing switch they are tied to the routing

service through the virtual router port without the loss of an external port. Groups of these VLANs

can communicate with each other through their virtual internal router interfaces. Sixty virtual

router interfaces are allowed in the 9304M, 180 in the 9308M.

The use of router virtual interfaces provides a high degree of flexibility with the routing switch and

is called Integrated Switch Routing (ISR).

2.3.1 IP

Since there is no performance degradation, IP routing is, by default, enabled on the HP ProCurve

routing switches. Some of the IP services available are:

Routing Services

RIP (version 1, version 1 compatible version 2, and version 2)

Split Horizon and Poison Reverse supported

Redistribution (importing of OSPF or static routes into the RIP route table)

OSPF (RFC 1583 and 2178 compliant)

Load sharing of equal cost paths

Redistribution (importing of RIP or static routes into the OSPF route tables)

OSPF traps (RFC 1850)

Static IP routes (64 maximum per chassis)

IRDP (ICMP Router Discovery Protocol)

Proxy ARP and RARP

Bootp Relay Service

UDP broadcast forwarding (UDP Helper)

Encapsulation type: Ethernet II (default) or SNAP

DNS Resolver (allows users to use host name rather than IP address for services such as Telnet, ping or trace

route.)

Extensive IP-based filtering available (see the Filtering section)

Routing services: RIP/SAP

Four encapsulation types: Ethernet SNAP, Ethernet 802.2, Ethernet 802.3 and Ethernet II

NetBIOS broadcast routing support

IPX filters (see the Filtering section)

The HP ProCurve routing switches support AppleTalk Phase II. AppleTalk is processor-based in the

9304M and 9308M. Performance is up to 300,000 packets per second. If multiple ports are being

switched together and then routed for AppleTalk through a virtual interface to these switched ports,

the 300,000 pps rate is for traffic through the virtual interfaces into the router. Traffic across the

Revision 4.0 – 4/1/1999

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