HP GbE2c HP GbE2c Ethernet Blade Switch for c-Class BladeSystem ISCLI Referenc - Page 46

IGMP multicast router port information, VRRP information

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IGMP multicast router port information The following table describes the commands used to display information about multicast routers learned through IGMP Snooping. Table 36 IGMP Multicast Router information commands Command Usage show ip igmp mrouter vlan show ip igmp mrouter information Displays information for all multicast groups on a single VLAN. Command mode: All except User EXEC Displays information for all multicast groups learned by the switch. Command mode: All except User EXEC VRRP information Virtual Router Redundancy Protocol (VRRP) support on GbE2c Ethernet Blade switch provides redundancy between routers in a LAN. This is accomplished by configuring the same virtual router IP address and ID number on each participating VRRP-capable routing device. One of the virtual routers is then elected as the master, based on a number of priority criteria, and assumes control of the shared virtual router IP address. If the master fails, one of the backup virtual routers will assume routing authority and take control of the virtual router IP address. NOTE: VRRP commands are available only on the GbE2c Layer 2/3 Ethernet Blade Switch. The following command displays VRRP information: show ip vrrp information Command mode: All except User EXEC VRRP information: 1: vrid 2, 205.178.18.210, if 1, renter, prio 100, master, server 2: vrid 1, 205.178.18.202, if 1, renter, prio 100, backup 3: vrid 3, 205.178.18.204, if 1, renter, prio 100, master, proxy When virtual routers are configured, you can view the status of each virtual router using this command. VRRP information includes: • Virtual router number • Virtual router ID and IP address • Interface number • Ownership status • owner identifies the preferred master virtual router. A virtual router is the owner when the IP address of the virtual router and its IP interface are the same. • renter identifies virtual routers which are not owned by this device • Priority value. During the election process, the virtual router with the highest priority becomes master. • Activity status • master identifies the elected master virtual router. • backup identifies that the virtual router is in backup mode. • init identifies that the virtual router is waiting for a startup event. Once it receives a startup event, it transitions to master if its priority is 255, (the IP address owner), or transitions to backup if it is not the IP address owner. • Server status. The server state identifies virtual routers. • Proxy status. The proxy state identifies virtual proxy routers, where the virtual router shares the same IP address as a proxy IP address. The use of virtual proxy routers enables redundant switches to share the same IP address, minimizing the number of unique IP addresses that must be configured. Information Commands 46

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Information Commands 46
IGMP multicast router port information
The following table describes the commands used to display information about multicast routers learned through
IGMP Snooping.
Table 36
IGMP Multicast Router information commands
Command
Usage
show ip igmp mrouter
vlan
<1-4095>
Displays information for all multicast groups on a single VLAN.
Command mode:
All except User EXEC
show ip igmp mrouter
information
Displays information for all multicast groups learned by the switch.
Command mode:
All except User EXEC
VRRP information
Virtual Router Redundancy Protocol (VRRP) support on GbE2c Ethernet Blade switch provides redundancy between
routers in a LAN. This is accomplished by configuring the same virtual router IP address and ID number on each
participating VRRP-capable routing device. One of the virtual routers is then elected as the master, based on a
number of priority criteria, and assumes control of the shared virtual router IP address. If the master fails, one of the
backup virtual routers will assume routing authority and take control of the virtual router IP address.
NOTE:
VRRP commands are available only on the GbE2c Layer 2/3 Ethernet Blade Switch.
The following command displays VRRP information:
show ip vrrp information
Command mode:
All except User EXEC
VRRP informa
tion:
1: vrid 2, 205.178.18.210, if 1, renter, prio 100, master, server
2: vrid 1, 205.178.18.202, if 1, renter, prio 100, backup
3: vrid 3, 205.178.18.204, if 1, renter, prio 100, master, proxy
When virtual routers are configured, you can view the status of each virtual router using this command. VRRP
information includes:
•
Virtual router number
•
Virtual router ID and IP address
•
Interface number
•
Ownership status
•
owner
identifies the preferred master virtual router. A virtual router is the owner when the IP address of the
virtual router and its IP interface are the same.
•
renter
identifies virtual routers which are not owned by this device
•
Priority value. During the election process, the virtual router with the highest priority becomes master.
•
Activity status
•
master
identifies the elected master virtual router.
•
backup
identifies that the virtual router is in backup mode.
•
init
identifies that the virtual router is waiting for a startup event. Once it receives a startup event, it
transitions to master if its priority is 255, (the IP address owner), or transitions to backup if it is not the IP
address owner.
•
Server status. The
server
state identifies virtual routers.
•
Proxy status. The proxy state identifies virtual proxy routers, where the virtual router shares the same IP address
as a proxy IP address. The use of virtual proxy routers enables redundant switches to share the same IP address,
minimizing the number of unique IP addresses that must be configured.