User`s guide
Table Of Contents
- Title
- Notice
- Contents
- Figures
- Tables
- About This Guide
- Introduction
- Local Management Requirements
- Accessing Local Management
- 3.1 Navigating Local Management Screens
- 3.2 Password Screen
- 3.3 Main Menu Screen
- 3.4 Module Selection Screen
- 3.5 Module Menu Screen
- 3.6 Overview of Security Methods
- 3.7 Security Menu Screen
- 3.8 Passwords Screen
- 3.9 Radius Configuration Screen
- 3.10 Name Services Configuration Screen
- 3.11 System Authentication Configuration Screen
- 3.12 EAP (Port) Configuration Screen
- 3.13 EAP Statistics Menu Screen
- 3.14 MAC Port Configuration Screen
- 3.15 MAC Supplicant Configuration Screen
- Chassis Menu Screens
- 4.1 Chassis Menu Screen
- 4.2 Chassis Configuration Screen
- 4.3 SNMP Configuration Menu Screen
- 4.4 SNMP Community Names Configuration Screen
- 4.5 SNMP Traps Configuration Screen
- 4.6 Chassis Environmental Information Screen
- 4.7 Redirect Configuration Menu Screen (Chassis)
- 4.8 Port Redirect Configuration Screen
- 4.9 VLAN Redirect Configuration Screen
- Module Configuration Menu Screens
- 5.1 Module Configuration Menu Screen
- 5.2 General Configuration Screen
- 5.2.1 Setting the IP Address
- 5.2.2 Setting the Subnet Mask
- 5.2.3 Setting the Default Gateway
- 5.2.4 Setting the TFTP Gateway IP Address
- 5.2.5 Setting the Module Name
- 5.2.6 Setting the Module Date
- 5.2.7 Setting the Module Time
- 5.2.8 Entering a New Screen Refresh Time
- 5.2.9 Setting the Screen Lockout Time
- 5.2.10 Configuring the COM Port
- 5.2.11 Clearing NVRAM
- 5.2.12 Enabling/Disabling IP Fragmentation
- 5.3 SNMP Configuration Menu Screen
- 5.4 SNMP Community Names Configuration Screen
- 5.5 SNMP Traps Configuration Screen
- 5.6 Access Control List Screen
- 5.7 System Resources Information Screen
- 5.8 FLASH Download Configuration Screen
- Port Configuration Menu Screens
- 6.1 Port Configuration Menu Screen
- 6.2 Ethernet Interface Configuration Screen
- 6.3 Ethernet Port Configuration Screen
- 6.4 HSIM/VHSIM Configuration Screen
- 6.5 Redirect Configuration Menu Screen
- 6.6 Port Redirect Configuration Screen
- 6.7 VLAN Redirect Configuration Screen
- 6.8 Link Aggregation Screen (802.3ad Main Menu Screen)
- 6.9 Broadcast Suppression Configuration Screen
- 802.1 Configuration Menu Screens
- 802.1Q VLAN Configuration Menu Screens
- 8.1 Summary of VLAN Local Management
- 8.2 802.1Q VLAN Configuration Menu Screen
- 8.3 Static VLAN Configuration Screen
- 8.4 Static VLAN Egress Configuration Screen
- 8.5 Current VLAN Configuration Screen
- 8.6 Current VLAN Egress Configuration Screen
- 8.7 VLAN Port Configuration Screen
- 8.8 VLAN Classification Configuration Screen
- 8.9 Protocol Port Configuration Screen
- 802.1p Configuration Menu Screens
- 9.1 802.1p Configuration Menu Screen
- 9.2 Port Priority Configuration Screen
- 9.3 Traffic Class Information Screen
- 9.4 Traffic Class Configuration Screen
- 9.5 Transmit Queues Configuration Screen
- 9.6 Priority Classification Configuration Screen
- 9.7 Protocol Port Configuration Screen
- 9.8 Rate Limiting Configuration Screen
- Layer 3 Extensions Menu Screens
- Module Statistics Menu Screens
- Network Tools Screens
- VLAN Operation and Network Applications
- 13.1 Defining VLANs
- 13.2 Types of VLANs
- 13.3 Benefits and Restrictions
- 13.4 VLAN Terms
- 13.5 VLAN Operation
- 13.6 Configuration Process
- 13.7 VLAN Switch Operation
- 13.8 VLAN Configuration
- 13.9 Summary of VLAN Local Management
- 13.10 Quick VLAN Walkthrough
- 13.11 Examples
- 13.12 Example 1, Single Switch Operation
- 13.13 Example 2, VLANs Across Multiple Switches
- 13.14 Example 3, Filtering Traffic According to a Layer 4 Classification Rule
- 13.15 Example 4, Securing Sensitive Information According to Subnet
- 13.16 Example 5, Using Dynamic Egress to Control Traffic
- 13.17 Example 6, Locking a MAC Address to a Port Using Classification Rules
- Generic Attribute Registration Protocol (GARP)
- About IGMP
- Index
Supported Features and Functions
B-2 About IGMP
B.2 SUPPORTED FEATURES AND FUNCTIONS
The following lists the features and functions supported when using IGMP:
• Runs only when the switch is operating in the 802.1Q mode.
• Supports multiple multicast and non-multicast routers on the same VLAN.
• Supports standalone multicast servers only if a router is present on the network.
• Multicast forwarding rate is dependent on the number of ports to which the multicast stream is
forwarded. More ports degrade the performance.
• Supports IGMP version 1 and 2 only. Default is version 2.
• Ports that are directly connected to routers are discovered dynamically through snooping for
routing protocols.
• IGMP is enabled or disabled per VLAN, and not per port.
• IGMP will run with GMRP, however, the IGMP does have higher priority than GMRP.
• The switch will “snoop” on all incoming multicast addresses to detect query responses, as well
as queries. Query responses are sent to the multicast address detected in the stream from the host
requesting to receive queries. The frame is an IP frame of protocol type 2. If the frame is a
response frame, IGMP will take the multicast address and VLAN ID, and program a filter on the
receive port. The response is then forwarded out upstream ports so that the router will receive it.
Ports that receive queries are marked as upstream ports. It is assumed a router exists somewhere
off this port, and responses are sent here. If the switch detects a router protocol on a port, that
port is also marked as a router port. This keeps the switch from blocking traffic to other routers.
NOTE: Certain versions of firmware will not allow the switch to be a querier. Refer to
the release notes shipped with your product and to standard (not shipped with product)
RFC 2236, Section 8, for more information.