BLADE OS™ Application Guide HP GbE2c Ethernet Blade Switch for c-Class BladeSystem Version 5.1 Advanced Functionality Software
Table Of Contents
- Contents
- Figures
- Tables
- Preface
- Part 1: Basic Switching
- Accessing the Switch
- The Management Network
- Local Management Using the Console Port
- The Command Line Interface
- Remote Management Access
- Client IP Address Agents
- Securing Access to the Switch
- Setting Allowable Source IP Address Ranges
- RADIUS Authentication and Authorization
- TACACS+ Authentication
- LDAP Authentication and Authorization
- Secure Shell and Secure Copy
- Configuring SSH/SCP Features on the Switch
- Configuring the SCP Administrator Password
- Using SSH and SCP Client Commands
- SSH and SCP Encryption of Management Messages
- Generating RSA Host and Server Keys for SSH Access
- SSH/SCP Integration with Radius Authentication
- SSH/SCP Integration with TACACS+ Authentication
- End User Access Control
- Ports and Trunking
- Port-Based Network Access Control
- VLANs
- Spanning Tree Protocol
- RSTP and MSTP
- Link Layer Discovery Protocol
- Quality of Service
- Accessing the Switch
- Part 2: IP Routing
- Basic IP Routing
- Routing Information Protocol
- IGMP
- OSPF
- OSPF Overview
- OSPF Implementation in BLADE OS
- OSPF Configuration Examples
- Remote Monitoring
- Part 3: High Availability Fundamentals
- High Availability
- Layer 2 Failover
- Server Link Failure Detection
- VRRP Overview
- Failover Methods
- BLADE OS Extensions to VRRP
- Virtual Router Deployment Considerations
- High Availability Configurations
- High Availability
- Part 4: Appendices
- Index
BLADE OS 5.1 Application Guide
BMD00113, September 2009 Chapter 11: IGMP 185
IGMPv3
IGMPv3 includes new membership report messages to extend IGMP functionality. The GbE2c
provides snooping capability for all types of IGMP version 3 (IGMPv3) Membership Reports, as
described in RFC 3376.
IGMPv3 supports Source-Specific Multicast (SSM). SSM identifies session traffic by both source
and group addresses. The GbE2c uses source filtering, which allows hosts to report interest in
receiving multicast packets only from specific source addresses, or from all but specific source
addresses.
The GbE2c supports the following IGMPv3 filter modes:
INCLUDE mode: The host requests membership to a multicast group and provides a list of IP
addresses from which it wants to receive traffic.
EXCLUDE mode: The host requests membership to a multicast group and provides a list of IP
addresses from which it does not want to receive traffic. This indicates that the host wants to
receive traffic only from sources that are not part of the Exclude list. To disable snooping on
EXCLUDE mode reports, use the following command:
/cfg/l3/igmp/snoop/igmpv3/exclude dis
By default, the GbE2c snoops the first eight sources listed in the IGMPv3 Group Record. Use the
following command to change the number of snooping sources:
/cfg/l3/igmp/snoop/igmpv3/sources <1-64>
IGMPv3 Snooping is compatible with IGMPv1 and IGMPv2 Snooping. You can disable snooping
on version 1 and version 2 reports, using the following command:
/cfg/l3/igmp/snoop/igmpv3/v1v2 dis
FastLeave
In normal IGMP operation, when the switch receives an IGMPv2 Leave message, it sends a
Group-Specific Query to determine if any other devices in the same group (and on the same port)
are still interested in the specified multicast group traffic. The switch removes the affiliated port
from that particular group, if the following conditions apply:
If the switch does not receive an IGMP Membership Report within the
query-response-interval.
If no multicast routers have been learned on that port.
With FastLeave enabled on the VLAN, a port can be removed immediately from the group entry
port list when an IGMP Leave message is received, unless a multicast route was learned on the port.
Enable FastLeave only on VLANs that have only one host connected to each physical port.