HP 5500 Ei 5500 Si Switch Series Configuration Guide

 235 
Step Command Remarks 
1.  Enter system view. 
system-view N/A 
2.  Enter BGP view. 
bgp as-number   N/A 
3.  Enter IPv4 MBGP address 
family view.  ipv4-family multicast
 N/A 
4.  Configure the router as a 
route reflector and specify an 
MBGP peer or a peer group 
as its client.  peer { group-name 
| peer -address  } 
reflect-client  Not configured by default. 
5.
  Enable route reflection 
between clients.  reflect 
between -clients   Optional. 
Enabled by default. 
6.
  Configure the cluster ID...

 236 
Task Command Remarks 
Display MBGP CIDR routing 
information. display bgp
 multicast  routing-table cidr  [ | { begin | 
exclude  | include  } regular-expression ]  Available in any 
view
 
Display MBGP routing 
information matching the 
specified BGP community.  display bgp
 multicast  routing-table 
community [ aa:nn& ] [  no-advertise | no-export 
|  no-export-subconfed  ] * [ whole-match  ] [ | { begin | 
exclude  | include  } regular-expression ]  Available in any 
view
 
Display MBGP routing...

 237 
Task Command Remarks 
Clear MBGP route flap statistics. reset bgp ipv4 multicast flap-info
 [ regexp 
as-path-regexp  | as-path-acl  as-path-acl-number  
|  ip-address  [ mask  |  mask-length  ] ]  Available in user 
view
 
 
MBGP configuration example 
Network requirements 
As shown in the following figure: 
•  PIM-SM 1 is in AS 100, and PIM-SM 2 is in AS 200. OSPF is the IGP in the two ASs, and MBGP 
runs between the two ASs to exchange multicast route information.  
•   The multicast source...

 238 
3.
 
Enable IP multicast routing, PIM-SM and IG MP, and configure a PIM-SM domain border: 
# 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 
The configuration on Switch B and Switch D is similar to the...

 239 
[SwitchB-LoopBack0] quit 
[SwitchB] pim 
[SwitchB-pim] c-bsr loopback 0 
[SwitchB-pim] c-rp loopback 0 
[SwitchB-pim] quit 
5. Configure BGP, specify the MBGP peer and enable direct route redistribution: 
# On Switch A, configure the MBGP peer  and enable direct route redistribution. 
[SwitchA] bgp 100 
[SwitchA-bgp] router-id 1.1.1.1 
[SwitchA-bgp] peer 192.168.1.2 as-number 200 
[SwitchA-bgp] import-route direct 
[SwitchA-bgp] ipv4-family multicast 
[SwitchA-bgp-af-mul] peer 192.168.1.2 enable...

 240 
You can use the display msdp brief  command to display MSDP peers on a switch. For example, 
display brief information about MSDP peers on Switch B. 
[SwitchB] display msdp brief 
MSDP Peer Brief Information of VPN-Instance: public net 
  Configured   Up           Listen       Connect      Shutdown     Down \
  1            1            0            0            0            0 
  Peers Address    State    Up/Down time    AS     SA Count   Reset Cou\
nt 
  192.168.1.1       Up       00:07:17...

 241 
Configuring MLD snooping 
Overview 
Multicast Listener Discovery (MLD) snooping is an IPv6 multicast constraining mechanism that runs on 
Layer 2 devices to manage and control IPv6 multicast groups. 
By analyzing received MLD messages, a Layer 2 devi ce that runs MLD snooping establishes mappings 
between ports and multicast MAC addresses and forwards IPv6 multicast data based on these 
mappings.  
As shown in  Figure 65, w
 hen MLD snooping does not run on the Layer 2 switch, IPv6 multicast...

 242 
Figure 66 MLD snooping related ports  
 
 
Ports involved in MLD snooping, as shown in Figure 66, ar e described as follows:  
•   Router port —A router port is a port on the Ethernet switch that leads switch toward the Layer-3 
multicast device (designated router or MLD querier). In the figure, GigabitEthernet 1/0/1 of Switch 
A and GigabitEthernet 1/0/1 of Switch B are router  ports. The switch registers all its local router 
ports in its router port list.  
In this document, a router port is...

 243 
Timer Description   Message before expiry Action after expiry 
Dynamic member 
port aging timer 
 When a port dynamically joins 
a multicast group, the switch 
starts an aging timer for the 
port. When the timer expires, 
the dynamic member port ages 
out. 
MLD report message. 
The switch removes this 
port from the MLD 
snooping forwarding 
table.  
 
 
NOTE: 
In MLD snooping, only dynamic ports ag e out. Static ports never age out.  
 
How MLD snooping works 
In this section, the involved ports...

 244 
multicast address suppress their own reports after receiving this report according to the MLD report 
suppression mechanism. This prevents the switch from confirming whether the reported multicast group 
still has active members attached to that port.  
For more information about the MLD report suppression mechanism of hosts, see  Configuring MLD 
(

available only on the HP 5500 EI) . 
When receiving a done message 
When a host leaves an IPv6 multicast group, the host sends an MLD done message to...