HP 5500 Ei 5500 Si Switch Series Configuration Guide
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![Page 1242
106
Task Command
Display IGMP group information. display igmp [
all-instance |
vpn-instance vpn-instance-name ]
group [ group-address | interface
interface-type interface-number ]
[ static | verbose ] [ | { begin |
exclude | include }
regular-expression ]
Available in any view
Display the Layer 2 port
information of IGMP groups.
display igmp group port-info
[ vlan
vlan-id ] [ slot slot-number ]
[ verbose ] [ | { begin | exclude |
include } regular-expression ]...](http://img.usermanuals.tech/thumb/36/58909/w64_hp-5500-ei-5500-si-switch-series-configuration-guide-1241.png "Page 1242
106
Task Command
Display IGMP group information. display igmp [
all-instance |
vpn-instance vpn-instance-name ]
group [ group-address | interface
interface-type interface-number ]
[ static | verbose ] [ | { begin |
exclude | include }
regular-expression ]
Available in any view
Display the Layer 2 port
information of IGMP groups.
display igmp group port-info
[ vlan
vlan-id ] [ slot slot-number ]
[ verbose ] [ | { begin | exclude |
include } regular-expression ]...")
![Page 1243
107
Task Command
Display the multicast group
information created from IGMPv1
and IGMPv2 reports based on the
configured IGMP SSM mappings. display igmp
[ all-instance |
vpn-instance vpn-instance-name ]
ssm-mapping group
[ group-address | interface
interface-type interface-number ]
[ verbose ] [ | { begin | exclude |
include } regular-expression ] Available in any view
Display information about the hosts
that join the group based on IGMP
SSM mappings on an interface....](http://img.usermanuals.tech/thumb/36/58909/w64_hp-5500-ei-5500-si-switch-series-configuration-guide-1242.png "Page 1243
107
Task Command
Display the multicast group
information created from IGMPv1
and IGMPv2 reports based on the
configured IGMP SSM mappings. display igmp
[ all-instance |
vpn-instance vpn-instance-name ]
ssm-mapping group
[ group-address | interface
interface-type interface-number ]
[ verbose ] [ | { begin | exclude |
include } regular-expression ] Available in any view
Display information about the hosts
that join the group based on IGMP
SSM mappings on an interface....")
![Page 1245
109
[SwitchA-Vlan-interface100] pim dm
[SwitchA-Vlan-interface100] quit
[SwitchA] interface vlan-interface 101
[SwitchA-Vlan-interface101] pim dm
[SwitchA-Vlan-interface101] quit
# Enable IP multicast routing on Switch B, enable PIM-DM on each interface, and enable IGMP on
VLAN-interface 200.
system-view
[SwitchB] multicast routing-enable
[SwitchB] interface vlan-interface 200
[SwitchB-Vlan-interface200] igmp enable
[SwitchB-Vlan-interface200] pim dm
[SwitchB-Vlan-interface200] quit...](http://img.usermanuals.tech/thumb/36/58909/w64_hp-5500-ei-5500-si-switch-series-configuration-guide-1244.png "Page 1245
109
[SwitchA-Vlan-interface100] pim dm
[SwitchA-Vlan-interface100] quit
[SwitchA] interface vlan-interface 101
[SwitchA-Vlan-interface101] pim dm
[SwitchA-Vlan-interface101] quit
# Enable IP multicast routing on Switch B, enable PIM-DM on each interface, and enable IGMP on
VLAN-interface 200.
system-view
[SwitchB] multicast routing-enable
[SwitchB] interface vlan-interface 200
[SwitchB-Vlan-interface200] igmp enable
[SwitchB-Vlan-interface200] pim dm
[SwitchB-Vlan-interface200] quit...")
105 commands configured in PIM view can still take effect. In addition, in IGMPv1, the designated router (DR) i s e l e c t e d b y t h e w o r k i n g m u l t i c a s t ro u t i n g p ro t o c o l ( s u c h a s P I M ) t o s e r v e a s t h e I G M P q u e r i e r. T h e re f o re , a downstream interface running IGMPv1 cannot be elec ted as the DR and thus cannot serve as the IGMP querier. You cannot enable IGMP proxying on a VLAN interface with IGMP snooping enabled, or vice versa. Configuration procedure To enable IGMP proxying: Step Command Remarks 1. Enter system view. system-view N/A 2. Enter interface view. interface interface-type interface-number N/A 3. Enable the IGMP proxying feature. igmp proxying enable Disabled by default Configuring multicast forwarding on a downstream interface Only queriers can forward multicast traffic but non-queriers have no multicast forwarding capabilities. This design helps avoid duplicate multicast flows. It is the same on IGMP proxy switches. Only the downstream interfaces acting as a querier can forward multicast traffic to downstream hosts. However, when a downstream interface of a proxy switch fails to win the querier election, you must enable multicast forwarding on this interface. IMPORTANT: On a multi-access network with more than one IGMP proxy switch, you cannot enable multicast forwarding on any other non-querier downstream inte rface after one of the downstream interfaces of these IGMP proxy switches has been elected as the querier. Otherwise, duplicate multicast flows mi ght be received on the multi-access network. To enable multicast forwarding on a downstream interface: Step Command Remarks 1. Enter system view. system-view N/A 2. Enter interface view. interface interface-type interface-number N/A 3. Enable multicast forwarding on a non-querier downstream interface. igmp proxying forwarding Disabled by default Displaying and maintaining IGMP
106
Task Command
Display IGMP group information. display igmp [
all-instance |
vpn-instance vpn-instance-name ]
group [ group-address | interface
interface-type interface-number ]
[ static | verbose ] [ | { begin |
exclude | include }
regular-expression ]
Available in any view
Display the Layer 2 port
information of IGMP groups.
display igmp group port-info
[ vlan
vlan-id ] [ slot slot-number ]
[ verbose ] [ | { begin | exclude |
include } regular-expression ]
Available in any view
Display information about the hosts
tracked by IGMP on an interface. display igmp host interface
interface-type interface-number
group group-address [ source
source-address ] [ | { begin |
exclude | include }
regular-expression ] Available in any view
Display information about the hosts
tracked by IGMP on the Layer 2
ports. display igmp host port-info
vlan
vlan-id group group-address
[ source source-address ] [ vlan
vlan-id ] [ slot slot-number ] [ |
{ begin | exclude | include }
regular-expression ] Available in any view
Display IGMP configuration and
operation information. display igmp
[ all-instance |
vpn-instance vpn-instance-name ]
interface [ interface-type
interface-number ] [ verbose ] [ |
{ begin | exclude | include }
regular-expression ]
Available in any view
Display the information of IGMP
proxying groups. display igmp [
all-instance |
vpn-instance vpn-instance-name ]
proxying group [ group-address ]
[ verbose ] [ | { begin | exclude |
include } regular-expression ] Available in any view
Display information in the IGMP
routing table. display igmp [
all-instance |
vpn-instance vpn-instance-name ]
routing-table [ source-address
[ mask { mask | mask-length } ] |
group-address [ mask { mask |
mask-length } ] | flags { act | suc } ]
* [ | { begin | exclude | include }
regular-expression ]
Available in any view
Display IGMP SSM mappings. display igmp
[ all-instance |
vpn-instance vpn-instance-name ]
ssm-mapping group-address [ |
{ begin | exclude | include }
regular-expression ] Available in any view
107
Task Command
Display the multicast group
information created from IGMPv1
and IGMPv2 reports based on the
configured IGMP SSM mappings. display igmp
[ all-instance |
vpn-instance vpn-instance-name ]
ssm-mapping group
[ group-address | interface
interface-type interface-number ]
[ verbose ] [ | { begin | exclude |
include } regular-expression ] Available in any view
Display information about the hosts
that join the group based on IGMP
SSM mappings on an interface. display igmp ssm-mapping host
interface
interface-type
interface-number group
group-address source
source-address [ | { begin |
exclude | include }
regular-expression ] Available in any view
Remove all the dynamic IGMP
group entries of IGMP groups. reset igmp [ all-instance
|
vpn-instance vpn-instance-name ]
group { all | interface
interface-type interface-number
{ all | group-address [ mask { mask
| mask-length } ] [ source-address
[ mask { mask | mask-length } ] ] } }Available in user view
Remove all the dynamic Layer 2
port entries of IGMP groups. reset igmp group port-info { all
|
group-address } [ vlan vlan-id ] Available in user view
Clear IGMP SSM mappings. reset igmp
[ all-instance |
vpn-instance vpn-instance-name ]
ssm-mapping group { all |
interface interface-type
interface-number { all |
group-address [ mask { mask |
mask-length } ] [ source-address
[ mask { mask | mask-length } ] ] } }
Available in user view
IMPORTANT:
The
reset igmp group command might cause an interruption of receivers’ reception of multicast data.
The reset igmp group command cannot remove static IGMP group entries.
The display igmp host interface command can display information about the hosts tracked by IGMP on
Layer 3 interfaces other than VLAN interfaces.
The display igmp ssm-mapping host interface command can display information about the hosts that
join the group based on IGMP SSM mappings on Layer 3 interfaces other than VLAN interfaces.
108 IGMP configuration examples Basic IGMP functions configuration example Network requirements Receivers receive VOD information through multicast. Receivers of different organizations form stub networks N1 and N2, and Host A and Host C are receivers in N1 and N2 respectively. IGMPv2 runs between Switch A and N1. IGMPv2 runs between the other two switches and N2. Switch B acts as the IGMP querier in N2 because it has a lower IP address. The hosts in N1 can join only multicast group 224.1.1.1, and the hosts in N2 can join any multicast groups. Figure 35 Network diagram Configuration procedure 1. Configure IP addresses and unicast routing: # Configure the IP address and subnet mask of each interface as per Figure 35. (Details not shown.) # Configure the OSPF protocol for interoperation on the PIM network. Ensure the network-layer interoperation on the PIM network and dynamic u pdate of routing information among the switches through a unicast routing protocol. (Details not shown.) 2. Enable IP multicast routing, and enable PIM-DM and IGMP: # Enable IP multicast routing on Switch A, enable PIM-DM on each interface, and enable IGMP on VLAN-interface 100. system-view [SwitchA] multicast routing-enable [SwitchA] interface vlan-interface 100 [SwitchA-Vlan-interface100] igmp enable Switch A Switch B Switch C Querier PIM network N1 N2 Receiver Receiver Host A Host B Host C Host DVlan-int100 10.110.1.1/24 Vlan-int200 10.110.2.1/24 Vlan-int200 10.110.2.2/24 Vlan-int101 Vlan-int201 Vlan-int202
109 [SwitchA-Vlan-interface100] pim dm [SwitchA-Vlan-interface100] quit [SwitchA] interface vlan-interface 101 [SwitchA-Vlan-interface101] pim dm [SwitchA-Vlan-interface101] quit # Enable IP multicast routing on Switch B, enable PIM-DM on each interface, and enable IGMP on VLAN-interface 200. system-view [SwitchB] multicast routing-enable [SwitchB] interface vlan-interface 200 [SwitchB-Vlan-interface200] igmp enable [SwitchB-Vlan-interface200] pim dm [SwitchB-Vlan-interface200] quit [SwitchB] interface vlan-interface 201 [SwitchB-Vlan-interface201] pim dm [SwitchB-Vlan-interface201] quit # Enable IP multicast routing on Switch C, enable PIM-DM on each interface, and enable IGMP on VLAN-interface 200. system-view [SwitchC] multicast routing-enable [SwitchC] interface vlan-interface 200 [SwitchC-Vlan-interface200] igmp enable [SwitchC-Vlan-interface200] pim dm [SwitchC-Vlan-interface200] quit [SwitchC] interface vlan-interface 202 [SwitchC-Vlan-interface202] pim dm [SwitchC-Vlan-interface202] quit 3. Configure a multicast group filter: # Configure a multicast group filter on Switch A, so that the hosts connected to VLAN-interface 100 can join only multicast group 224.1.1.1. [SwitchA] acl number 2001 [SwitchA-acl-basic-2001] rule permit source 224.1.1.1 0 [SwitchA-acl-basic-2001] quit [SwitchA] interface vlan-interface 100 [SwitchA-Vlan-interface100] igmp group-policy 2001 [SwitchA-Vlan-interface100] quit 4. Verify the configuration: # Display IGMP information on VLAN-interface 200 of Switch B. [SwitchB] display igmp interface vlan-interface 200 Vlan-interface200(10.110.2.1): IGMP is enabled Current IGMP version is 2 Value of query interval for IGMP(in seconds): 60 Value of other querier present interval for IGMP(in seconds): 125 Value of maximum query response time for IGMP(in seconds): 10 Querier for IGMP: 10.110.2.1 (this router) Total 1 IGMP Group reported
110 SSM mapping configuration example Network requirements The PIM-SM domain applies both the ASM model and SSM model for multicast delivery. Switch D’s VLAN-interface 104 serves as the C-BSR and C-RP. The SSM group range is 232.1.1.0/24. IGMPv3 runs on Switch D’s VLAN-interface 400. The receiver host runs IGMPv2, and does not support IGMPv3. Therefore, the Receiver host cannot specify expected multicast sources in its membership reports. S o u r c e 1, S o u r c e 2, a n d S o u r c e 3 s e n d m u l t i c a s t p a c k e t s t o m u l t i c a s t g r o u p s i n t h e S S M g r o u p r a n g e . Yo u can configure the IGMP SSM mapping feature on Switch D so that the receiver host will receive multicast data from Source 1 and Source 3 only. Figure 36 Network diagram Device Interface IP address Device Interface IP address Source 1 — 133.133.1.1/24 Source 3 — 133.133.3.1/24 Source 2 — 133.133.2.1/24 Receiver — 133.133.4.1/24 Switch A Vlan-int100 133.133.1.2/24 Switch C Vlan-int300 133.133.3.2/24 Vlan-int101 192.168.1.1/24 Vlan-int103 192.168.3.1/24 Vlan-int104 192.168.4.2/24 Vlan-int102 192.168.2.2/24 Switch B Vlan-int200 133.133.2.2/24 Switch D Vlan-int400 133.133.4.2/24 Vlan-int101 192.168.1.2/24 Vlan-int103 192.168.3.2/24 Vlan-int102 192.168.2.1/24 Vlan-int104 192.168.4.1/24 Configuration procedure 1. Configure IP addresses and unicast routing: # Configure the IP address and subnet mask of each interface as per Figure 36. (Details not shown.) # Configure OSPF for interoperability among the sw itches. Ensure the network-layer interoperation on the PIM-SM domain and dynamic update of ro uting information among the switches through a unicast routing protocol. (Details not shown.) 2. Enable IP multicast routing, enable PIM-SM on each interface, and enable IGMP and IGMP SSM mapping on the host-side interface: # Enable IP multicast routing on Switch D, enabl e PIM-SM on each interface, and enable IGMPv3 and IGMP SSM mapping on VLAN-interface 400.
111 system-view [SwitchD] multicast routing-enable [SwitchD] interface vlan-interface 400 [SwitchD-Vlan-interface400] igmp enable [SwitchD-Vlan-interface400] igmp version 3 [SwitchD-Vlan-interface400] igmp ssm-mapping enable [SwitchD-Vlan-interface400] pim sm [SwitchD-Vlan-interface400] quit [SwitchD] interface vlan-interface 103 [SwitchD-Vlan-interface103] pim sm [SwitchD-Vlan-interface103] quit [SwitchD] interface vlan-interface 104 [SwitchD-Vlan-interface104] pim sm [SwitchD-Vlan-interface104] quit # Enable IP multicast routing on Switch A, and enable PIM-SM on each interface. system-view [SwitchA] multicast routing-enable [SwitchA] interface vlan-interface 100 [SwitchA-Vlan-interface100] pim sm [SwitchA-Vlan-interface100] quit [SwitchA] interface vlan-interface 101 [SwitchA-Vlan-interface101] pim sm [SwitchA-Vlan-interface101] quit [SwitchA] interface vlan-interface 104 [SwitchA-Vlan-interface104] pim sm [SwitchA-Vlan-interface104] quit The configuration on Switch B and Switch C is similar to that on Switch A. 3. Configure a C-BSR and a C-RP: # Configure C-BSR and C-RP interfaces on Switch D. [SwitchD] pim [SwitchD-pim] c-bsr vlan-interface 104 [SwitchD-pim] c-rp vlan-interface 104 [SwitchD-pim] quit 4. Configure the SSM group range: # Configure the SSM group range 232.1.1.0/24 on Switch D. [SwitchD] acl number 2000 [SwitchD-acl-basic-2000] rule permit source 232.1.1.0 0.0.0.255 [SwitchD-acl-basic-2000] quit [SwitchD] pim [SwitchD-pim] ssm-policy 2000 [SwitchD-pim] quit The configuration on Switch A, Switch B and Switch C is similar to that on Switch D. 5. Configure IGMP SSM mappings: # Configure IGMP SSM mappings on Switch D. [SwitchD] igmp [SwitchD-igmp] ssm-mapping 232.1.1.0 24 133.133.1.1
112
[SwitchD-igmp] ssm-mapping 232.1.1.0 24 133.133.3.1
[SwitchD-igmp] quit
6. Verify the configuration:
# Display the IGMP SSM mapping information fo r multicast group 232.1.1.1 on Switch D.
[SwitchD] display igmp ssm-mapping 232.1.1.1
Vpn-Instance: public net
Group: 232.1.1.1
Source list:
133.133.1.1
133.133.3.1
# Display the IGMP group information created based on the IGMP SSM mappings on Switch D.
[SwitchD] display igmp ssm-mapping group
Total 1 IGMP SSM-mapping Group(s).
Interface group report information of VPN-Instance: public net
Vlan-interface400(133.133.4.2):
Total 1 IGMP SSM-mapping Group reported
Group Address Last Reporter Uptime Expires
232.1.1.1 133.133.4.1 00:02:04 off
# Display PIM routing table information on Switch D.
[SwitchD] display pim routing-table
Vpn-instance: public net
Total 0 (*, G) entry; 2 (S, G) entry
(133.133.1.1, 232.1.1.1)
Protocol: pim-ssm, Flag:
UpTime: 00:13:25
Upstream interface: Vlan-interface104
Upstream neighbor: 192.168.4.2
RPF prime neighbor: 192.168.4.2
Downstream interface(s) information:
Total number of downstreams: 1
1: Vlan-interface400
Protocol: igmp, UpTime: 00:13:25, Expires: -
(133.133.3.1, 232.1.1.1)
Protocol: pim-ssm, Flag:
UpTime: 00:13:25
Upstream interface: Vlan-interface103
Upstream neighbor: 192.168.3.1
RPF prime neighbor: 192.168.3.1
Downstream interface(s) information:
Total number of downstreams: 1
1: Vlan-interface400
Protocol: igmp, UpTime: 00:13:25, Expires: -
113 IGMP proxying configuration example Network requirements PIM-DM is required to run on the core network. Host A and Host C in the stub network receive VOD information destined to multicast group 224.1.1.1. Configure the IGMP proxying feature on Switch B so that Switch B can maintain group memberships and forward multicast traffic without running PIM-DM. Figure 37 Network diagram Configuration procedure 1. Configure IP addresses: # Configure the IP address and subnet mask of each interface as per Figure 37. (Details not shown.) 2. Enable IP multicast routing, PIM-DM, IGMP, and IGMP proxying: # Enable IP multicast routing on Switch A, PIM-DM on VLAN-interface 101, and IGMP on VLAN-interface 100. system-view [SwitchA] multicast routing-enable [SwitchA] interface vlan-interface 101 [SwitchA-Vlan-interface101] pim dm [SwitchA-Vlan-interface101] quit [SwitchA] interface vlan-interface 100 [SwitchA-Vlan-interface100] igmp enable [SwitchA-Vlan-interface100] pim dm [SwitchA-Vlan-interface100] quit # Enable IP multicast routing on Switch B, IGMP Proxying on VLAN-interface 100, and IGMP on VLAN-interface 200. system-view [SwitchB] multicast routing-enable [SwitchB] interface vlan-interface 100 [SwitchB-Vlan-interface100] igmp proxying enable [SwitchB-Vlan-interface100] quit [SwitchB] interface vlan-interface 200
114 [SwitchB-Vlan-interface200] igmp enable [SwitchB-Vlan-interface200] quit 3. Verify the configuration: # Display IGMP information on VLAN-interface 100 of Switch B. [SwitchB] display igmp interface vlan-interface 100 verbose Vlan-interface100(192.168.1.2): IGMP proxy is enabled Current IGMP version is 2 Multicast routing on this interface: enabled Require-router-alert: disabled Version1-querier-present-timer-expiry: 00:00:20 # Display IGMP group information on Switch A. [SwitchA] display igmp group Total 1 IGMP Group(s). Interface group report information of VPN-Instance: public net Vlan-interface100(192.168.1.1): Total 1 IGMP Groups reported Group Address Last Reporter Uptime Expires 224.1.1.1 192.168.1.2 00:02:04 00:01:15 The output shows that IGMP reports from the ho sts are forwarded to Switch A through the proxy interface, VLAN-interface 100 on Switch B. Troubleshooting IGMP No membership information on the receiver-side router Symptom When a host sends a report for joining multicast gr oup G, no membership information of the multicast group G exists on the router closest to that host. Analysis • The correctness of networking and interface conn ections and whether the protocol layer of the interface is up directly affect the genera tion of group membership information. • Multicast routing must be enabled on the router, and IGMP must be enabled on the interface connecting to the host. • If the IGMP version on the router interface is lower than that on the host, the router will not be able to recognize the IGMP report from the host. • If the igmp group-policy command has been configured on th e interface, the interface cannot receive report messages that fail to pass filtering. Solution 1. Use the display igmp interface command to verify that the networking, interface connection, and IP address configuration are correct. If no information is output, the interface is in an abnormal state. The reason is that you have configured the shutdown command on the interface, the interface is not properly connected, or th e IP address configuration is not correct.