ZyXEL Communications Network Card gigabit ethernet line card version 4.02 Manual de usuario descargar pdf (Pagina 11)

Chapter 1 Introducing the GLC1320G-55

GLC1320G-55 User’s Guide

IGMP Message Rate Limiting

The GLC1320G-55 can limit how many IGMP message packets a subscriber can send per second.

This prevents subscribers from flooding the multicast server.

Static Multicast

Use static multicast to allow incoming frames based on multicast MAC address(es) that you specify.

This feature can be used in conjunction with IGMP snooping to allow multicast MAC address(es)

that are not learned by IGMP snooping. You can use static multicast to pass routing protocols, such

as RIP and OSPF.

Multicast Bandwidth Control

The GLC1320G-55 supports static bandwidth control for multicast traffic. Bandwidth limits can be

assigned to multicast channels. During IGMP snooping, the system checks the total bandwidth

usage to see if it exceeds the specified limit. If the specified limits are reached, the system restricts

the joining of multicast groups.

DHCP Relay

DHCP (Dynamic Host Configuration Protocol RFC 2131 and RFC 2132) allows individual computers

to obtain TCP/IP configuration at start-up from a server. You can configure the system as a DHCP

relay agent to have another DHCP server provide TCP/IP configuration for the clients. In addition,

you can set the system to forward client DHCP requests to specific DHCP servers based on the VLAN

ID. You can also specify up to two DHCP servers for each VLAN to provide failover protection.

DHCP Relay Option82

The system supports DHCP relay agent82 (RFC 3046) that adds additional information to client

DHCP requests that the MSC relays to a DHCP server. It also supports adding the sub-option 2

(Remote ID) with additional information.

DHCP Snooping

DHCP snooping allows the system to identify packets with DHCP server assigned IP address(es) and

block access of devices using unknown IP addresses on a subscriber port. You can also manually

add static IP addresses to the DHCP snooping table.

System Error Logging

The system error log will record error logs locally to the management switch card memory.

Remote Firmware Upgrade

You can use FTP or SFTP to perform configuration backup/restore and firmware upgrade from a

remote location.

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 29 30

Sin comentarios

ZyXEL Communications Network Card gigabit ethernet line card version 4.02 Manual de usuario Pagina 11