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HP 5500 Ei 5500 Si Switch Series Configuration Guide

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# On Switch B, enable IPv6 multicast routing, enable IPv6 PIM-SM on each interface, enable MLD 
in VLAN interface 200, and enable IPv6 BIDIR-PIM. 
 system-view 
[SwitchB] multicast ipv6 routing-enable 
[SwitchB] interface vlan-interface 200 
[SwitchB-Vlan-interface200] mld enable 
[SwitchB-Vlan-interface200] pim ipv6 sm 
[SwitchB-Vlan-interface200] quit 
[SwitchB] interface vlan-interface 101 
[SwitchB-Vlan-interface101] pim ipv6 sm 
[SwitchB-Vlan-interface101] quit 
[SwitchB] interface vlan-interface 102 
[SwitchB-Vlan-interface102] pim ipv6 sm 
[SwitchB-Vlan-interface102] quit 
[SwitchB] pim ipv6 
[SwitchB-pim6] bidir-pim enable 
[SwitchB-pim6] quit 
# On Switch C, enable IPv6 multicast routing, en able IPv6 PIM-SM on each interface, and enable 
IPv6 BIDIR-PIM.  
 system-view 
[SwitchC] multicast ipv6 routing-enable 
[SwitchC] interface vlan-interface 102 
[SwitchC-Vlan-interface102] pim ipv6 sm 
[SwitchC-Vlan-interface102] quit 
[SwitchC] interface vlan-interface 103 
[SwitchC-Vlan-interface103] pim ipv6 sm 
[SwitchC-Vlan-interface103] quit 
[SwitchC] interface loopback 0 
[SwitchC-LoopBack0] pim ipv6 sm 
[SwitchC-LoopBack0] quit 
[SwitchC] pim ipv6 
[SwitchC-pim6] bidir-pim enable 
# On Switch D, enable IPv6 multicast routing, enable IPv6 PIM-SM on each interface, enable MLD 
in VLAN interface 300, an d enable IPv6 BIDIR-PIM. 
 system-view 
[SwitchD] multicast ipv6 routing-enable 
[SwitchD] interface vlan-interface 300 
[SwitchD-Vlan-interface300] mld enable 
[SwitchD-Vlan-interface300] pim ipv6 sm 
[SwitchD-Vlan-interface300] quit 
[SwitchD] interface vlan-interface 400 
[SwitchD-Vlan-interface400] pim ipv6 sm 
[SwitchD-Vlan-interface400] quit 
[SwitchD] interface vlan-interface 103 
[SwitchD-Vlan-interface103] pim ipv6 sm 
[SwitchD-Vlan-interface103] quit 
[SwitchD] pim ipv6 
[SwitchD-pim6] bidir-pim enable
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    							 406 
[SwitchD-pim6] quit 
3. Configure C-BSR and C-RP: 
# On Switch C, configure VLAN interface 102 as  a C-BSR, and loopback interface 0 as a C-RP for 
the entire IPv6 BIDIR-PIM domain. 
[SwitchC-pim6] c-bsr 2002::2 
[SwitchC-pim6] c-rp 6001::1 bidir 
[SwitchC-pim6] quit 
4.  Verify the configuration: 
To view the DF information of IPv6 BIDIR-PIM on a switch, use the  display pim ipv6 df-info 
command: 
# Display the DF information of  IPv6 BIDIR-PIM on Switch A.  
[SwitchA] display pim ipv6 df-info 
 RP Address: 6001::1 
  Interface           State   DF-Pref    DF-Metric  DF-Uptime DF-Address\
 
  Vlan100             Win     100        2          01:08:50  FE80::200:\
5EFF: 
                                                              FE71:2800 \
(local) 
  Vlan101             Lose    100        1          01:07:49  FE80::20F:\
E2FF: 
                                                              FE38:4E01 \
# Display the DF information of IPv6 BIDIR-PIM on Switch B.  
[SwitchB] display pim ipv6 df-info 
 RP Address: 6001::1 
  Interface           State   DF-Pref    DF-Metric  DF-Uptime DF-Address\
 
  Vlan200             Win     100        1          01:24:09  FE80::200:\
5EFF: 
                                                              FE71:2801 \
(local) 
  Vlan101             Win     100        1          01:24:09  FE80::20F:\
E2FF: 
                                                              FE38:4E01 \
(local) 
  Vlan102             Lose    0          0          01:23:12  FE80::20F:\
E2FF: 
                                                              FE15:5601 \
# Display the DF information of IPv6 BIDIR-PIM on Switch C.  
[SwitchC] display pim ipv6 df-info 
 RP Address: 6001::1 
  Interface           State   DF-Pref    DF-Metric  DF-Uptime DF-Address\
 
  Loop0               -       -          -          -         - 
  Vlan102             Win     0          0          01:06:07  FE80::20F:\
E2FF: 
                                                              FE15:5601 \
(local) 
  Vlan103             Win     0          0          01:06:07  FE80::20F:\
E2FF: 
                                                              FE15:5602 \
(local) 
# Display the DF information of IPv6 BIDIR-PIM on Switch D.  
[SwitchD] display pim ipv6 df-info 
 RP Address: 6001::1 
  Interface           State   DF-Pref    DF-Metric  DF-Uptime DF-Address\
 
  Vlan300             Win     100        1          01:19:53  FE80::200:\
5EFF: 
                                                              FE71:2803 \
(local) 
  Vlan400             Win     100        1          00:39:34  FE80::200:\
5EFF: 
                                                              FE71:2802 \
(local) 
  Vlan103             Lose    0          0          01:21:40  FE80::20F:\
E2FF: 
                                                              FE15:5602 \
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To view the DF information of the IPv6 multicast forwarding table on a switch, use the  display 
multicast ipv6 forwarding-table df-info  command. For more information about this command, see 
IP Multicast Command Reference .  
# Display the DF information of the IPv6 multicast forwarding table on Switch A. 
[SwitchA] display multicast ipv6 forwarding-table df-info 
Multicast DF information 
Total 1 RP 
  
Total 1 RP matched 
  
00001. RP Address: 6001::1 
     MID: 0, Flags: 0x2100000:0 
     Uptime: 00:08:32 
     RPF interface: Vlan-interface101 
     List of 1 DF interfaces: 
       1: Vlan-interface100 
# Display the DF information of the IPv6 multicast forwarding table on Switch B. 
[SwitchB] display multicast ipv6 forwarding-table df-info 
Multicast DF information 
Total 1 RP 
  
Total 1 RP matched 
  
00001. RP Address: 6001::1 
     MID: 0, Flags: 0x2100000:0 
     Uptime: 00:06:24 
     RPF interface: Vlan-interface102 
     List of 2 DF interfaces: 
       1: Vlan-interface101 
       2: Vlan-interface200 
# Display the DF information of the IPv6 multicast forwarding table on Switch C. 
[SwitchC] display multicast ipv6 forwarding-table df-info 
Multicast DF information 
Total 1 RP 
  
Total 1 RP matched 
  
00001. RP Address: 6001::1 
     MID: 0, Flags: 0x2100000:0 
     Uptime: 00:07:21 
     RPF interface: LoopBack0 
     List of 2 DF interfaces: 
       1: Vlan-interface102 
       2: Vlan-interface103 
# Display the DF information of the IPv6  multicast forwarding table on Switch D. 
[SwitchD] display multicast ipv6 forwarding-table df-info 
Multicast DF information 
Total 1 RP
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Total 1 RP matched 
  
00001. RP Address: 6001::1 
     MID: 0, Flags: 0x2100000:0 
     Uptime: 00:05:12 
     RPF interface: Vlan-interface103 
     List of 2 DF interfaces: 
       1: Vlan-interface300 
       2: Vlan-interface400 
IPv6 PIM-SSM configuration example  
Network requirements 
Receivers receive VOD information through multicast. The receiver groups of different organizations form 
stub networks, and one or more receiver hosts exist in each stub network. The entire PIM domain is 
operating in the SSM mode. 
Host A and Host C are IPv6 multicast receivers in two stub networks, N1 and N2. 
The SSM group range is FF3E::/64. 
MLDv2 runs between Switch A and N1 and between Switch B/Switch C and N2. 
Figure 107 Network diagram 
 
Device Interface IPv6 address Device Interface IPv6 address 
Switch A  Vlan-int100  1001::1/64 Switch D Vlan-int300 4001::1/64 
 Vlan-int101 1002::1/64  Vlan-int101  1002::2/64 
 Vlan-int102 1003::1/64  Vlan-int105 4002::1/64 
Ethernet
Ethernet
Ethernet
N1
N2
Vlan-
int101
Vlan-
int
101
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Switch B  Vlan-int200  2001::1/64
 Switch E Vlan-int104 3001::2/64 
 Vlan-int103 
2002::1/64  Vlan-int103  2002::2/64 
Switch C  Vlan-int200  2001::2/64  Vlan-int102 1003::2/64 
 Vlan-int104 3001::1/64  Vlan-int105 4002::2/64  
Configuration procedure 
1. Enable IPv6 forwarding and configure IPv6 addresses and IPv6 unicast routing: 
Enable IPv6 forwarding on each switch and config ure the IPv6 address and prefix length for each 
interface as per  Figure 107. (Details not shown.) 
Conf

igure OSPFv3 on the switches in the IPv6 PIM-SSM domain to ensure network-layer 
reachability among them. (Details not shown.) 
2.  Enable IPv6 multicast routing, and enable IPv6 PIM-SM and MLD: 
# Enable IPv6 multicast routing on Switch A, enable IPv6 PIM-SM on each interface, and run 
MLDv2 on VLAN-interface 100, which connects Switch A to N1.  
 system-view 
[SwitchA] multicast ipv6 routing-enable 
[SwitchA] interface vlan-interface 100 
[SwitchA-Vlan-interface100] mld enable 
[SwitchA-Vlan-interface100] mld version 2 
[SwitchA-Vlan-interface100] pim ipv6 sm 
[SwitchA-Vlan-interface100] quit 
[SwitchA] interface vlan-interface 101 
[SwitchA-Vlan-interface101] pim ipv6 sm 
[SwitchA-Vlan-interface101] quit 
[SwitchA] interface vlan-interface 102 
[SwitchA-Vlan-interface102] pim ipv6 sm 
[SwitchA-Vlan-interface102] quit 
The configuration on Switch B and Switch C is similar to that on Switch A. The configuration on 
Switch D and Switch E is also similar to that on Switch A except that it is not necessary to enable 
MLD on the corresponding interf aces on these two switches.  
3. Configure the IPv6 SSM group range: 
# Configure the IPv6 SSM group range to be FF3E::/64 on Switch A.  
[SwitchA] acl ipv6 number 2000 
[SwitchA-acl6-basic-2000] rule permit source ff3e:: 64 
[SwitchA-acl6-basic-2000] quit 
[SwitchA] pim ipv6 
[SwitchA-pim6] ssm-policy 2000 
[SwitchA-pim6] quit 
The configuration on Switch B, Switch C, Switch D, and Switch E is similar to that on Switch A.  
4. Verify the configuration: 
Use the  display pim ipv6 interface  command to view the IPv6 PIM configuration and running status 
on each interface. For example:  
# Display IPv6 PIM configuration information on Switch A. 
[SwitchA] display pim ipv6 interface 
 Interface             NbrCnt HelloInt   DR-Pri   DR-Address 
 Vlan100               0      30         1        1001::1
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                                                  (local) 
 Vlan101               1      30         1        1002::2 
 Vlan102               1      30         1        1003::2 
Assume that Host A needs to receive the information a specific IPv6 multicast source S 
(4001::100/64) sends to IPv6 multicast group G (FF3E::101). Switch A builds an SPT toward the 
IPv6 multicast source. Switches on the SPT path (S witch A and Switch D) have generated an (S, G) 
entry, but Switch E, which is not on the SPT path,  does not have IPv6 multicast routing entries. You 
can use the  display pim ipv6 routing-table command to view the IPv6 PIM routing table 
information on each switch.  For example:  
# Display IPv6 PIM multicast routing table information on Switch A.  
[SwitchA] display pim ipv6 routing-table 
 Total 0 (*, G) entry; 1 (S, G) entry 
 
 (4001::100, FF3E::101) 
     Protocol: pim-ssm, Flag: 
     UpTime: 00:00:11 
     Upstream interface: Vlan-interface101 
         Upstream neighbor: 1002::2 
         RPF prime neighbor: 1002::2 
     Downstream interface(s) information: 
     Total number of downstreams: 1 
         1: Vlan-interface100 
             Protocol: mld, UpTime: 00:00:11, Expires: 00:03:25 
# Display IPv6 PIM multicast routing table information on Switch B.  
[SwitchD] display pim ipv6 routing-table 
 Total 0 (*, G) entry; 1 (S, G) entry   
 
 (4001::100, FF3E::101) 
     Protocol: pim-ssm, Flag: LOC 
     UpTime: 00:08:02 
     Upstream interface: Vlan-interface300 
         Upstream neighbor: NULL 
         RPF prime neighbor: NULL 
     Downstream interface(s) information: 
     Total number of downstreams: 1 
         1: Vlan-interface105 
             Protocol: pim-ssm, UpTime: 00:08:02, Expires: 00:03:25 
Troubleshooting IPv6 PIM configuration 
Failure to build a multicast distribution tree correctly 
Symptom 
None of the routers in the network (including routers directly connected with IPv6 multicast sources and 
receivers) have IPv6 multicast forwarding entries. That is, a multicast distribution tree cannot be built 
correctly and clients cannot receive IPv6 multicast data.
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Analysis 
•  An IPv6 PIM routing entry is created based on an IPv6 unicast route, whichever IPv6 PIM mode is 
running. Multicast works only when unicast does.  
•   IPv6 PIM must be enabled on the RPF interface. An RPF neighbor must be an IPv6 PIM neighbor as 
well. If IPv6 PIM is not enabled on the RPF interface or the RPF neighbor, the establishment of a 
multicast distribution tree will fail, resulting in abnormal multicast forwarding.  
•   I P v 6  P I M  re q u i re s  t h a t  t h e  s a m e  I P v 6  P I M  m o d e  ( n a m e l y,  D M  o r  S M )  m u s t  r u n  o n  t h e  e n t i re  n e t w o r k .  
Otherwise, the establishment of a multicast distribution tree will fail, resulting in abnormal multicast 
forwarding.  
Solution 
1. Use the  display ipv6 routing-table  command to verify that a unicast route exists to the IPv6 
multicast source or the RP.  
2.  Use the  display pim ipv6 interface  command to verify that the RPF interface is IPv6 PIM enabled. 
If IPv6 PIM is not enabled on the interface, use the  pim ipv6 dm or pim ipv6 sm  command to enable 
IPv6 PIM.  
3.  Use the  display pim ipv6 neighbor  command to verify that the RPF neighbor is an IPv6 PIM 
neighbor. 
4.  Verify that IPv6 PIM and MLD are enabled on the in terfaces that are directly connected to the IPv6 
multicast source and to the receiver. 
5.  Use the  display pim ipv6 interface verbose  c o mmand to ve r i f y that the s ame  P I M  mode  i s  e nabl e d 
on the RPF interface and the corresponding interface of the RPF neighbor router.  
6.  Use the  display current-configuration  command to verify that the same IPv6 PIM mode is enabled 
on all the routers in the entire network. Make sure that the same IPv6 PIM mode is enabled on all 
the routers: IPv6 PIM-SM on all routers, or IPv6 PIM-DM on all routers.  
IPv6 multicast data abnormally terminated on an intermediate 
router 
Symptom 
An intermediate router can receive IPv6 multicast  data successfully, but the data cannot reach the last 
hop router. An interface on the intermediate router receives data, but no corresponding (S, G) entry is 
created in the IPv6 PIM routing table. 
Analysis 
•   If an IPv6 multicast forwarding boundary has been configured through the  multicast ipv6 boundary 
command, any IPv6 multicast packet will be kept from crossing the boundary, and no routing entry 
can be created in the IPv6 PIM routing table. 
•   In addition, the  source-policy command filters received IPv6 multicast packets. If the IPv6 multicast 
data fails to pass the IPV6 ACL rule defined in th is command, IPv6 PIM cannot create the route entry 
either. 
Solution 
1.  Use the  display current-configuration  command to verify the IPv6 multicast forwarding boundary 
settings. Use the  multicast ipv6 boundary  command to change the IP v6 multicast forwarding 
boundary settings.
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2.
 
Use the  display current-configuration  command to verify the IPv6 mu lticast filter configuration. 
Change the IPv6 ACL rule defined in the source-policy  command so that the source/group address 
of the IPv6 multicast data can pass ACL filtering. 
RPS cannot join SPT in IPv6 PIM-SM 
Symptom 
An RPT cannot be established correctly, or the RPs  cannot join the SPT to the IPv6 multicast source.  
Analysis 
•  As the core of an IPv6 PIM-SM domain, the RPs serves specific IPv6 multicast groups. Multiple RPs 
can coexist in a network. Make sure that the RP information on all routers is exactly the same and 
that a specific group is mapped to the same RP. Otherwise, IPv6 multicast will fail.  
•   In the case of the static RP mechanism, the same RP address must be configured on all the routers 
in the entire network, including static RPs, by means of the static RP command. Otherwise, IPv6 
multicast will fail.  
Solution 
1. Use the  display ipv6 routing-table  command to verify that a route is available on each router to the 
RP.  
2.  Use the  display pim ipv6 rp-info  command to verify that the RP  information is consistent on all 
routers. In the case of inconsistent RP inform ation, configure consistent RP address on all the 
routers.  
3.  Use the  display pim ipv6 rp-info  command to verify that the same RP address has been configured 
on all the routers throughout the network.  
RPT establishment failure or source registration failure in IPv6 
PIM-SM 
Symptom 
C-RPs cannot unicast advertise messages to the BS R. The BSR does not advertise bootstrap messages 
containing C-RP information and has no unicast route to  any C-RP. An RPT cannot be established correctly, 
or the DR cannot perform source registration with the RP.  
Analysis 
•   C-RPs periodically send advertisement messages to  the BSR by unicast. If a C-RP does not have a 
route to the BSR, the BSR cannot receive the advertisements from the C-RP, and the bootstrap 
messages of the BSR will not contain the information about that C-RP.  
•   The RP is the core of an IPv6 PIM-SM domain. Make sure that the RP information on all routers is 
exactly the same, a specific group is mapped to the  same RP, and a unicast route is available to the 
RP.  
Solution 
1.  Use the  display ipv6 routing-table  command to verify that routes are available on each router to 
the RP and the BSR, and whether a route is available between the RP and the BSR. Make sure that 
each C-RP has a unicast route to the BSR, the BS R has a unicast route to each C-RP, and all the 
routers in the entire network have a unicast route to the RP.
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2.
 
IPv6 PIM-SM needs the support of the RP and BSR. Use the  display pim ipv6 bsr-info command to 
verify that the BSR information is available on each router, and then use the  display pim ipv6 
rp-info  command to check whether the RP information is correct.  
3. Use the  display pim ipv6 neighbor  command to verify that normal  neighboring relationships have 
been established among the routers.
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Configuring IPv6 MBGP (available only on the 
HP 5500 EI) 
IPv6 MBGP overview 
This chapter covers configuration tasks related to multiprotocol BGP for IPv6 multicast. For information 
about BGP and IPv6 BGP, see  Layer 3—IP Routing Configuration Guide . The term router in this chapter 
refers to both routers and Layer 3 switches. 
IETF defined Multiprotocol BGP (MP-BGP) to carry routing information for multiple network-layer 
protocols.  
For an IPv6 network, the topology for IPv6 multicast might be different from that for IPv6 unicast. To 
distinguish them, the MP-BGP enables BGP to carry the IPv6 unicast Network Layer Reachability 
Information (NLRI) and IPv6 multicast NLRI separately, and the multicast NLRI performs reverse path 
forwarding (RPF) exclusively. In this way, route selection for a destination through the IPv6 unicast routing 
table and through the IPv6 multicast routing table ha ve different results, ensuring consistent unicast 
forwarding and normal multicast between domains. For information about RPF, see  Configuring 
m

ulticast routing and forwarding (available only on the HP 5500 EI) . 
MP-BGP is defined in RFC 2858 (Multiprotocol Extens ions for BGP-4). The application of MP-BGP on IPv6 
multicast is called IPv6 Multicast BGP (IPv6 MBGP). 
IPv6 MBGP configuration task list 
 
Task   Remarks 
Configuring basic 
IPv6 MBGP functions  Configuring an IPv6 MBGP peer 
Required
 Configuring a preferred value for  routes from a peer or a peer 
group  Optional
 
Controlling route 
distribution and 
reception  Injecting a local IPv6 MBGP route 
Optional
 
Configuring IPv6 MBGP route redistribution  Optional
 
Configuring IPv6 MBGP route summarization  Optional
 
Advertising a default route to a peer or peer group  Optional
 
Configuring outbound IPv6 MBGP route filtering  Optional
 
Configuring inbound IPv6 MBGP route filtering  Optional
 
Configuring IPv6 MBGP route dampening  Optional
 
Configuring IPv6 
MBGP route 
attributes  Configuring IPv6 MBGP route preferences 
Optional Configuring the default local preference  
Configuring the MED attribute 
Configuring the next hop attribute   Optional
 
Configuring the as_path attribute  Optional
 
Tuning and  Configuring IPv6 MBGP soft reset 
Optional
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