Cabletron Systems 2000, Getting Started Manual, Page: 25 / 92

SmartSwitch Router 2000 Getting Started Guide 25
Chapter 1: Features Overview
which allow you to use a single port to “trunk” traffic from multiple VLANs to another
SSR 2000 or switch which supports 802.1q.
Routing
The SSR 2000 provides high-speed routing for the following protocols:
• Internet Protocol (IP) – the protocol switching and routing devices use for moving
traffic within the Internet and within many corporate intranets.
• Internet Packet Exchange (IPX) – a protocol by Novell used in Netware products.
Note: All other protocols that require routing must be tunneled using IP.
By default, the SSR 2000 uses one MAC address for all interfaces. The SSR 2000 can be
configured to have a separate MAC address for each IP interface and a separate MAC
address for each IPX interface. When the SSR 2000 receives a packet whose destination
MAC address is one of the SSR 2000’s IP or IPX interface MAC addresses, the port that
received the packet from the network uses information in the module’s L3 lookup tables
(or information supplied by the motherboard) to route the packet to its IP destination(s).
You can create only one IP and IPX interface on a single port or VLAN. You can add
secondary IP addresses to the same IP interface. When you add an interface to a set of
ports, you are adding a VLAN to those ports. Ports that contain IP and IPX interfaces can
still perform Layer-2 bridging.
IP Routing
The SSR 2000 supports the following IP unicast routing protocols:
• RIP v1 and RIP v2
• OSPF v2
• BGP v2/v3/v4
IP interfaces do not use a specific routing protocol by default. When you configure an
interface for routing, you also specify the routing protocol the interface will use.
IP Multicast Routing
The SSR 2000 supports the following IP multicast routing protocols:
• IGMP v1 and IGMP v2
• DVMRP v3
The SSR 2000 does not use a specific IP Multicast routing protocol by default. Configuring
an interface for IP Multicast simultaneously specifies its routing protocol.