User manual
Table Of Contents
- Introduction
- Product Overview
- Installation and Quick Startup
- Package Contents
- Switch Installation
- Installing the Switch in a Rack
- Quick Starting the Switch
- System Information Setup
- Quick Start up Software Version Information
- Quick Start up Physical Port Data
- Quick Start up User Account Management
- Quick Start up IP Address
- Quick Start up Uploading from Switch to Out-of-Band PC
- Quick Start up Downloading from Out-of-Band PC to Switch
- Quick Start up Downloading from TFTP Server
- Quick Start up Factory Defaults
- Console and Telnet Administration Interface
- Web-Based Management Interface
- Command Line Interface Structure and Mode-based CLI
- Switching Commands
- System Information and Statistics commands
- Device Configuration Commands
- Interface
- L2 MAC Address and Multicast Forwarding Database Tables
- VLAN Management
- Double VLAN commands
- GVRP and Bridge Extension
- IGMP Snooping
- IGMP Snooping Querier
- MLD Snooping
- MLD Snooping Querier
- Port Channel
- Storm Control
- L2 Priority
- Port Mirror
- Link State
- Port Backup
- FIP Snooping
- Enhanced Transmission Selection (ETS)
- Congestion Notification
- Management Commands
- Spanning Tree Commands
- System Log Management Commands
- Script Management Commands
- User Account Management Commands
- Security Commands
- CDP (Cisco Discovery Protocol) Commands
- SNTP (Simple Network Time Protocol) Commands
- MAC-Based Voice VLAN Commands
- LLDP (Link Layer Discovery Protocol) Commands
- Denial Of Service Commands
- VTP (VLAN Trunking Protocol) Commands
- Protected Ports Commands
- Static MAC Filtering Commands
- System Utilities
- DHCP Snooping Commands
- IP Source Guard (IPSG) Commands
- Dynamic ARP Inspection (DAI) Command
- Differentiated Service Command
- ACL Command
- IPv6 ACL Command
- CoS (Class of Service) Command
- Domain Name Server Relay Commands
- Routing Commands
- IP Multicast Commands
- IPv6 Commands
- Web-Based Management Interface
- Overview
- System Menu
- View ARP Cache
- Viewing Inventory Information
- Configuring Management Session and Network Parameters
- Defining Forwarding Database
- Viewing Logs
- Managing Switch Interface
- Defining sFlow
- Defining SNMP
- Viewing Statistics
- Managing System Utilities
- Managing CDP Function
- Defining Trap Manager
- Configuring SNTP
- Defining DHCP Client
- Defining DNS Relay Function
- Switching Menu
- Managing DHCP Snooping
- Managing IP Source Guard (IPSG)
- Managing Dynamic ARP Inspection (DAI)
- Managing Filters
- Managing Port-based VLAN
- Managing Protected Ports
- Managing Protocol-based VLAN
- Managing IP Subnet-based VLAN
- Managing MAC-based VLAN
- Managing MAC-based Voice VLAN
- Managing Voice VLAN
- Defining GARP
- Managing IGMP Snooping
- Managing IGMP Snooping Querier
- Managing MLD Snooping
- Managing MLD Snooping Querier
- Managing Port-Channel
- Viewing Multicast Forwarding Database
- Managing Spanning Tree
- Defining 802.1p priority
- Managing Port Security
- Managing LLDP
- Managing LLDP-MED
- Managing VTP
- Managing Link State
- Managing Port-Backup
- Managing FIP-Snooping
- Routing Menu
- Security Menu
- IPv6 Menu
- Configuring IPv6 Global Configuration Page
- Configuring IPv6 Interface Configuration Page
- Viewing IPv6 Interface Summary Page
- Viewing IPv6 Interface Statistics Page
- Viewing IPv6 Neighbor Table Information Page
- Viewing IPv6 Static Neighbor Table Information Page
- Managing OSPFv3 Protocol
- Managing IPv6 Routes
- Managing RIPv6
- QOS Menu
- IPv4 Multicast Menu
- IPv6 Multicast Menu

- 941 -
Last Member Query Interval - The last member query interval. The last member query interval is the
maximum response time inserted into group-specific queries sent in response to leave group
messages, and is also the amount of time between group-specific query messages. This value may
be tuned to modify the leave latency of the network. A reduced value results in reduced time to detect
the loss of the last member of a group. This value is not used for IGMP version 1.
Last Member Query Count - The number of queries to be sent on receiving a leave group report.
Querier - The address of the IGMP querier on the IP subnet to which the selected interface is
attached.
Querier Status - Indicates whether the selected interface is in querier or non querier mode.
Querier Up Time - The time in seconds since the IGMP interface querier was last changed.
Querier Expiry Time - The time in seconds remaining before the other querier present timer expires.
If the local system is the querier, this will be zero.
Wrong Version Queries - The number of queries that have been received on the selected interface
with an IGMP version that does not match the IGMP version configured for the interface, over the
lifetime of the entry. IGMP requires that all routers on a LAN be configured to run the same version of
IGMP. Therefore, a configuration error is indicated if any queries are received with the wrong version
number.
Number of Joins - The number of times a group membership has been added on the selected
interface; that is, the number of times an entry for this interface has been added to the cache table.
This gives an indication of the amount of IGMP activity on the interface.
Number of Groups - The current number of entries for the selected interface in the cache table.
Command Buttons
Refresh - Refresh the data on the screen with the present state of the data in the router.
11.8.2.4 Viewing IGMP Cache Information Page
Selection Criteria
Slot/Port - Select the Slot and port for which data is to be displayed. Slot 0 is the base unit.
Multicast Group IP - Select the IP multicast group address for which data is to be displayed. If no
group membership reports have been received on the selected interface you will not be able to make
this selection, and none of the non-configurable data will be displayed.
Non-Configurable Data