HP 5500 Ei 5500 Si Switch Series Configuration Guide

 
 
342 
 
Configuring a large-scale IPv6 BGP network 
In a large-scale IPv6 BGP network, configuration and maintenance become inconvenient because of too 
many peers. Configuring peer groups makes mana gement easier and improves route distribution 
efficiency. Peer group includes IBGP peer group,  where peers belong to the same AS, and EBGP peer 
group, where peers belong to different ASs. If peers in an EBGP group belong to the same external AS, 
the EBGP peer group is a pure EBGP peer grou p, and if...

 
 
343 
 Ste
p Command Remarks 
2.
  Enter BGP view. 
bgp as-number   N/A 
3.  Enter IPv6 address family 
view.  ipv6-family 
N/A 
4.  Create an EBGP peer group. 
group ipv6-group-name  external  N/A 
5.  Configure the AS number for 
the peer group.  peer ipv6-group-name
 as-number  
as-number  Not configured by default. 
6.
  Add an IPv6 peer into the 
peer group.  peer 
ipv6-address  group 
ipv6-group-name  Not added by default. 
 
Creating a mixed EBGP peer group 
When creating a mixed EBGP peer...

 
 
344 
 Ste
p Command Remarks 
4.
  Advertise community attribute 
to an IPv6 peer or peer group.  peer {
 ipv6-group-name  | 
ipv6-address  } 
advertise-community  Not advertised by default. 
5.
  Advertise extended 
community attribute to an IPv6 
peer or peer group.  peer {
 ipv6-group-name  | 
ipv6-address  } 
advertise-ext-community  Not advertised by default. 
 
Applying a routing policy to routes advertised to a peer or peer group 
 
Step Command Remarks 
1.
  Enter system view. 
system-view...

 
 
345 
 
Configuring BFD for IPv6 BGP 
IPv6 BGP maintains neighbor relationships based on the keepalive timer and holdtime timer, which are 
set in seconds. IPv6 BGP defines that the holdtime interval must be at least three times the keepalive 
interval. This mechanism makes the detection of a link failure rather slow and thus causes a large 
quantity of packets to be dropped especially when th e failed link is a high-speed link. You can enable 
BFD to detect the link to a peer. BFD can quickly  detect...

 
 
346 
 Task Command
 Remarks 
Display the prefix entries in the 
ORF information of the specified 
BGP peer. 
display bgp ipv6 peer 
{ ip-address  | ipv6-address  } 
received ipv6-prefix [ |  { begin | exclude |  include } 
regular-expression  ]  Available in 
any view
 
Display IPv6 BGP routing table 
information.  display bgp ipv6 routing-table 
[ ipv6-address 
prefix-length  ] [ | { begin |  exclude | include } 
regular-expression  ]  Available in 
any view
 
Display IPv6 BGP routing 
information...

 
 
347 
 Task Command
 Remarks 
Perform soft reset on 
IPv6 BGP connections. 
refresh
 bgp  ipv6  { ipv4-address  | ipv6-address  | all | external  | 
group  ipv6-group-name  | internal  } { export  | import  }  Available in 
user view
 
Reset IPv6 BGP 
connections.  reset bgp ipv6 {
 as-number  | ipv4-address  | ipv6-address  
[ flap-info ] | all  | external  | group  group-name  | internal  }  Available in 
user view
 
 
Clearing IPv6 BGP information  
Task Command Remarks 
Clear dampened IPv6 BGP...

 
 
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 system-view 
[SwitchB] ipv6 
[SwitchB] bgp 65009 
[SwitchB-bgp] router-id 2.2.2.2 
[SwitchB-bgp] ipv6-family 
[SwitchB-bgp-af-ipv6] peer 9:1::2 as-number 65009 
[SwitchB-bgp-af-ipv6] peer 9:3::2 as-number 65009 
[SwitchB-bgp-af-ipv6] quit 
[SwitchB-bgp] quit 
# Configure Switch C. 
 system-view  
[SwitchC] ipv6 
[SwitchC] bgp 65009 
[SwitchC-bgp] router-id 3.3.3.3 
[SwitchC-bgp] ipv6-family 
[SwitchC-bgp-af-ipv6] peer 9:3::1 as-number 65009 
[SwitchC-bgp-af-ipv6] peer 9:2::2 as-number 65009...

 
 
349 
 
 
 BGP local router ID : 2.2.2.2 
 Local AS number : 65009 
 Total number of peers : 3                 Peers in established state : \
3 
 
  Peer           AS  MsgRcvd  MsgSent  OutQ PrefRcv Up/Down  State 
 
  10::2       65008        3        3     0       0 00:01:16 Established\
 
  9:3::2      65009        2        3     0       0 00:00:40 Established\
 
  9:1::2      65009        2        4     0       0 00:00:19 Established\
 
# Display IPv6 peer information on Switch C. 
[SwitchC]...

 
 
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2. Configure IPv6 BGP basic functions: 
# Configure Switch A. 
 system-view  
[SwitchA] ipv6 
[SwitchA] bgp 100 
[SwitchA-bgp] router-id 1.1.1.1 
[SwitchA-bgp] ipv6-family 
[SwitchA-bgp-af-ipv6] peer 100::2 as-number 200 
[SwitchA-bgp-af-ipv6] network 1:: 64 
#Configure Switch B. 
 system-view  
[SwitchB] ipv6 
[SwitchB] bgp 200 
[SwitchB-bgp] router-id 2.2.2.2 
[SwitchB-bgp] ipv6-family 
[SwitchB-bgp-af-ipv6] peer 100::1 as-number 100 
[SwitchB-bgp-af-ipv6] peer 101::1 as-number 200...

 
 
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  •  Configure IPv6 BGP on the switches. Switches A and B establish an IBGP relationship. Switches B 
and C establish an EBGP relationship. 
•   Configure IPsec policies on the switches to authenticate and encrypt protocol packets.  
Figure 117  Network diagram 
 
 
Configuration procedure 
1. Configure IP addresses for inte rfaces. (Details not shown.) 
2. Configure the IBGP connection:  
# Configure Switch A. 
 system-view 
[SwitchA] ipv6 
[SwitchA] bgp 65008 
[SwitchA-bgp] router-id 1.1.1.1...