Chapter 56 Product Specifications

Table 172 Firmware Specifications

FEATURE

DESCRIPTION

Multicast VLAN

Multicast VLAN Registration (MVR) is designed for applications

Registration (MVR)

(such as Media-on-Demand (MoD)) using multicast traffic

 

across a network. MVR allows one single multicast VLAN to be

 

shared among different subscriber VLANs on the network.

 

This improves bandwidth utilization by reducing multicast

 

traffic in the subscriber VLANs and simplifies multicast group

 

management.

 

 

IP Multicast

With IP multicast, the Switch delivers IP packets to a group of

 

hosts on the network - not everybody. In addition, the Switch

 

can send packets to Ethernet devices that are not VLAN-aware

 

by untagging (removing the VLAN tags) IP multicast packets.

 

 

RIP

RIP (Routing Information Protocol) allows a routing device to

 

exchange routing information with other routers.

 

 

OSPF

OSPF (Open Shortest Path First) is a link-state protocol

 

designed to distribute routing information within an

 

autonomous system (AS). An autonomous system is a

 

collection of networks using a common routing protocol to

 

exchange routing information. OSPF is best suited for large

 

networks.

 

 

DVMRP

DVMRP (Distance Vector Multicast Routing Protocol) is a

 

protocol used for routing multicast data within an autonomous

 

system (AS). DVMRP provides multicast forwarding capability

 

to a layer 3 switch that runs both the IPv4 protocol (with IP

 

Multicast support) and the IGMP protocol.

 

 

VRRP

Virtual Router Redundancy Protocol (VRRP), defined in RFC

 

2338, allows you to create redundant backup gateways to

 

ensure that the default gateway of a host is always available.

 

 

STP (Spanning Tree

(M)(R)STP detects and breaks network loops and provides

Protocol) / RSTP (Rapid

backup links between switches, bridges or routers. It allows a

STP)/MSTP (Multiple

Switch to interact with other (M)(R)STP-compliant switches in

Spanning Tree Protocol)

your network to ensure that only one path exists between any

 

two stations on the network.

 

 

Loop Guard

Use the loop guard feature to protect against network loops on

 

the edge of your network.

 

 

IP Source Guard

Use IP source guard to filter unauthorized DHCP and ARP

 

packets in your network.

 

 

Link Aggregation

Link aggregation (trunking) is the grouping of physical ports

 

into one logical higher-capacity link. You may want to trunk

 

ports if for example, it is cheaper to use multiple lower-speed

 

links than to under-utilize a high-speed, but more costly,

 

single-port link.

 

 

Port Authentication and

For security, the Switch allows authentication using IEEE

Security

802.1x with an external RADIUS server and port security that

 

allows only packets with dynamically learned MAC addresses

 

and/or configured static MAC addresses to pass through a port

 

on the Switch.

 

 

Authentication,

The Switch supports authentication, authorization and

Authorization and

accounting services via RADIUS and TACACS+ AAA servers.

Accounting

 

 

 

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XGS-4526/4528F/4728F User’s Guide