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HP 5500 Ei 5500 Si Switch Series Configuration Guide

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Step Command  Remarks 
4.  Associate track with PBR.  Set the next hop and associate it with a 
track entry: 
apply ip-address next-hop 
ip-address 
[ direct ] [ track  track-entry-number  ] 
[ ip-address [ direct  ] [ track 
track-entry-number  ] ] 
Set the default next hop, and associate it 
with a track entry: 
apply ip-address default next-hop  
ip-address [  track  track-entry-number]  
[ ip-address [  track  track-entry-number]  ]  Configure at least one of the 
commands.
 
 
 NOTE:  
You can associate a nonexistent track entry with PBR.  The association takes effect only after you use the
 
track command to create the track entry.   
Displaying and maintaining track entries 
 
Task Command Remarks 
Display information about the 
specified or all track entries.  display
 track  { track-entry-number  | 
all  } [ |  { begin  | exclude | 
include  } regular-expression ]  Available in any view 
 
Track configuration examples 
VRRP-track-NQA collaboration configuration example (the 
master monitors the uplink) (available only on the HP 5500 EI) 
Network requirements 
•
  As shown in Figure 56 , Host A needs to access Host B on the Internet. The default gateway of Host 
A  i s  1 0 .1.1.1 0 / 2 4 .  
•   Switch A and Switch B belong to VRRP group 1, whose virtual IP address is 10.1.1.10. 
•   When Switch A works properly, packets from Host A to Host B are forwarded through Switch A. 
When VRRP finds that a fault is on the uplink of Switch A through NQA, packets from Host A to Host 
B are forwarded through Switch B.
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    							 209 
Figure 56 Network diagram 
 
 
Configuration procedure 
1. Create VLANs, and assign corres ponding ports to the VLANs. Configure the IP address of each 
VLAN interface as shown in  Figure 56. (D
 etails not shown.) 
2. Configure an NQA test group on Switch A: 
 system-view 
# Create an NQA test group with the administrator name  admin and the operation tag test. 
[SwitchA] nqa entry admin test 
# Configure the test type as ICMP-echo. 
[SwitchA-nqa-admin-test] type icmp-echo 
# Configure the destinat ion address as 10.1.2.2. 
[SwitchA-nqa-admin-test-icmp-echo] destination ip 10.1.2.2 
# Set the test frequency to 100 ms. 
[SwitchA-nqa-admin-test-icmp-echo] frequency 100 
# Configure reaction entry 1, specifying that fi ve consecutive probe failures trigger the track 
module. 
[SwitchA-nqa-admin-test-icmp-echo] reaction 1 checked-element probe-fail\
 
threshold-type consecutive 5 action-type trigger-only 
[SwitchA-nqa-admin-test-icmp-echo] quit 
# Start the NQA test. 
[SwitchA] nqa schedule admin test start-time now lifetime forever 
3.  Configure a track entry on Switch A: 
# Configure track entry 1, and associate it with reaction entry 1 of the NQA test group (with the 
administrator  admin, and the operation tag  test). 
[SwitchA] track 1 nqa entry admin test reaction 1 
4. Configure VRRP on Switch A: 
# Create VRRP group 1, and configure the  virtual IP address 10.1.1.10 for the group. 
[SwitchA] interface vlan-interface 2 
[SwitchA-Vlan-interface2] vrrp vrid 1 virtual-ip 10.1.1.10 
# Set the priority of Switch A in VRRP group 1 to 110. 
[SwitchA-Vlan-interface2] vrrp vrid 1 priority 110
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# Set the authentication mode of VRRP group 1 to simple, and the authentication key to  hello. 
[SwitchA-Vlan-interface2] vrrp vrid 1 authentication-mode simple hello 
# Configure the master to send VRRP packe ts at an interval of five seconds. 
[SwitchA-Vlan-interface2] vrrp vrid 1 timer advertise 5 
# Configure Switch A to operate in preemptiv e mode, and set the preemption delay to five 
seconds. 
[SwitchA-Vlan-interface2] vrrp vrid 1 preempt-mode timer delay 5 
# Configure to monitor track entry 1, an d specify the priority decrement to 30. 
[SwitchA-Vlan-interface2] vrrp vrid 1 track 1 reduced 30 
5. Configure VRRP on Switch B: 
 system-view 
[SwitchB] interface vlan-interface 2 
# Create VRRP group 1, and configure the  virtual IP address 10.1.1.10 for the group. 
[SwitchB-Vlan-interface2] vrrp vrid 1 virtual-ip 10.1.1.10 
# Set the authentication mode of VRRP group 1 to  simple, and the authentication key to  hello. 
[SwitchB-Vlan-interface2] vrrp vrid 1 authentication-mode simple hello 
# Configure the master to send VRRP packe ts at an interval of five seconds. 
[SwitchB-Vlan-interface2] vrrp vrid 1 timer advertise 5 
# Configure Switch B to operate in preemptiv e mode, and set the preemption delay to five 
seconds. 
[SwitchB-Vlan-interface2] vrrp vrid 1 preempt-mode timer delay 5 
6.  Verify the configuration: 
After configuration, ping Host B on Host A, and you can see that Host B is reachable. Use the 
display vrrp  command to view the configuration result.  
# Display detailed information about VRRP group 1 on Switch A. 
[SwitchA-Vlan-interface2] display vrrp verbose 
 IPv4 Standby Information: 
     Run Mode       : Standard 
     Run Method     : Virtual MAC 
 Total number of virtual routers : 1 
   Interface Vlan-interface2 
     VRID           : 1               Adver Timer  : 5 
     Admin Status   : Up              State        : Master 
     Config Pri     : 110             Running Pri  : 110 
     Preempt Mode   : Yes             Delay Time   : 5 
     Auth Type      : Simple          Key          : hello 
     Virtual IP     : 10.1.1.10 
     Virtual MAC    : 0000-5e00-0101 
     Master IP      : 10.1.1.1 
   VRRP Track Information: 
     Track Object   : 1              State : Positive          Pri Reduc\
ed : 30 
# Display detailed information about VRRP group 1 on Switch B. 
[SwitchB-Vlan-interface2] display vrrp verbose 
 IPv4 Standby Information: 
     Run Mode       : Standard 
     Run Method     : Virtual MAC
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 Total number of virtual routers : 1 
   Interface Vlan-interface2 
     VRID           : 1               Adver Timer  : 5 
     Admin Status   : Up              State        : Backup 
     Config Pri     : 100             Running Pri  : 100 
     Preempt Mode   : Yes             Delay Time   : 5 
     Become Master  : 2200ms left 
     Auth Type      : Simple          Key          : hello 
     Virtual IP     : 10.1.1.10 
     Master IP      : 10.1.1.1 
The output shows that in VRRP group 1, Switch A is the master, and Switch B is a backup. Packets 
from Host A to Host B are forwarded through Switch A. 
When a fault is on the link between Switch A and  Switch C, you can still successfully ping Host B 
on Host A. Use the  display vrrp command to view information about VRRP group 1. 
# Display detailed information about VRRP group 1 on  S w i t c h  A  w h e n  a  f a u l t  i s  o n  t h e  l i n k  b e t w e e n  
Switch A and Switch C. 
 IPv4 Standby Information: 
     Run Mode       : Standard 
     Run Method     : Virtual MAC 
 Total number of virtual routers : 1 
   Interface Vlan-interface2 
     VRID           : 1               Adver Timer  : 5 
     Admin Status   : Up              State        : Backup 
     Config Pri     : 110             Running Pri  : 80 
     Preempt Mode   : Yes             Delay Time   : 5 
     Become Master  : 2200ms left 
     Auth Type      : Simple          Key          : hello 
     Virtual IP     : 10.1.1.10 
     Master IP      : 10.1.1.2 
   VRRP Track Information: 
     Track Object   : 1              State : Negative          Pri Reduc\
ed : 30 
# Display detailed information about VRRP group 1 on  Switch B when a fault is on the link between 
Switch A and Switch C. 
[SwitchB-Vlan-interface2] display vrrp verbose 
 IPv4 Standby Information: 
     Run Mode       : Standard 
     Run Method     : Virtual MAC 
 Total number of virtual routers : 1 
   Interface Vlan-interface2 
     VRID           : 1               Adver Timer  : 5 
     Admin Status   : Up              State        : Master 
     Config Pri     : 100             Running Pri  : 100 
     Preempt Mode   : Yes             Delay Time   : 5 
     Auth Type      : Simple          Key          : hello 
     Virtual IP     : 10.1.1.10 
     Virtual MAC    : 0000-5e00-0101 
     Master IP      : 10.1.1.2
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The output shows that when a fault is on the link between Switch A and Switch C, the priority of 
Switch A decreases to 80. Switch A becomes  the backup, and Switch B becomes the master. 
Packets from Host A to Host B are forwarded through Switch B. 
Configuring BFD for a VRRP backup to monitor the master 
(available only on the HP 5500 EI) 
Network requirements 
•   As shown in  Figure 57, Switch A and Switch B belong to VRRP group 1, whose virtual IP address is 
192.168.0.10. 
•   The default gateway of the hosts in the LAN is 192.168.0.10. When Switch A works properly, the 
hosts in the LAN access the external network through Switch A. When Switch A fails, the hosts in the 
LAN access the external network through Switch B. 
•   If BFD is not configured, when the master in a VRRP group fails, the backup cannot become the 
master until the configured timeout timer expires.  The timeout is generally three to four seconds, 
which makes the switchover slow. To solve this problem, VRRP uses BFD to probe the state of the 
master. Once the master fails, the backup can become the new master in milliseconds. 
Figure 57  Network diagram 
 
 
Configuration procedure 
1. Create VLANs, and assign corres ponding ports to the VLANs. Configure the IP address of each 
VLAN interface as shown in  Figure 57. (D
 etails not shown.) 
2. Configure VRRP on Switch A: 
 system-view 
[SwitchA] interface vlan-interface 2
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# Create VRRP group 1, and configure the virtual IP address 192.168.0.10 for the group. Set the 
priority of Switch A in VRRP group 1 to 110. 
[SwitchA-Vlan-interface2] vrrp vrid 1 virtual-ip 192.168.0.10 
[SwitchA-Vlan-interface2] vrrp vrid 1 priority 110 
[SwitchA-Vlan-interface2] return 
3.  Configure BFD on Switch B: 
# Configure the source address of BFD echo packets as 10.10.10.10. 
 system-view 
[SwitchB] bfd echo-source-ip 10.10.10.10 
4. Create the track entry to be associated  with the BFD session on Switch B: 
# Create track entry 1 to be associated with  the BFD session to check whether Switch A is 
reachable. 
[SwitchB] track 1 bfd echo interface vlan-interface 2 remote ip 192.168.0.101 local 
ip 192.168.0.102 
5.  Configure VRRP on Switch B: 
# Create VRRP group 1, and configure the virt ual IP address 192.168.0.10 for the group. VRRP 
group 1 monitors the status of track entry 1. When  the status of the track entry becomes Negative, 
Switch B quickly becomes the master. 
[SwitchB] interface vlan-interface 2 
[SwitchB-Vlan-interface2] vrrp vrid 1 virtual-ip 192.168.0.10 
[SwitchB-Vlan-interface2] vrrp vrid 1 track 1 switchover 
[SwitchB-Vlan-interface2] return 
6.  Verify the configuration: 
# Display the detailed information about VRRP group 1 on Switch A. 
 display vrrp verbose 
 IPv4 Standby Information: 
     Run Mode       : Standard 
     Run Method     : Virtual MAC 
 Total number of virtual routers : 1 
   Interface Vlan-interface2 
     VRID           : 1               Adver Timer  : 1 
     Admin Status   : Up              State        : Master 
     Config Pri     : 110             Running Pri  : 110 
     Preempt Mode   : Yes             Delay Time   : 0 
     Auth Type      : None 
     Virtual IP     : 192.168.0.10 
     Virtual MAC    : 0000-5e00-0101 
     Master IP      : 192.168.0.101 
# Display the detailed information about VRRP group 1 on Switch B. 
 display vrrp verbose 
 IPv4 Standby Information: 
     Run Mode       : Standard 
     Run Method     : Virtual MAC 
 Total number of virtual routers : 1 
   Interface Vlan-interface2 
     VRID           : 1               Adver Timer  : 1 
     Admin Status   : Up              State        : Backup
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     Config Pri     : 100             Running Pri  : 100 
     Preempt Mode   : Yes             Delay Time   : 0 
     Become Master  : 2200ms left 
     Auth Type      : None 
     Virtual IP     : 192.168.0.10 
     Master IP      : 192.168.0.101 
   VRRP Track Information: 
     Track Object   : 1              State : Positive          Switchove\
r 
# Display information about track entry 1 on Switch B. 
 display track 1 
Track ID: 1 
  Status: Positive 
  Duration: 0 days 0 hours 0 minutes 32 seconds 
  Notification delay: Positive 0, Negative 0 (in seconds) 
  Reference object: 
    BFD session: 
    Packet type: Echo 
    Interface  : Vlan-interface2 
    Remote IP  : 192.168.0.101 
    Local IP   : 192.168.0.102 
The output shows that when the status of the track entry becomes Positive, Switch A is the master, 
and Switch B the backup.  
# Enable VRRP state debugging and BFD event debugging on Switch B. 
 terminal debugging 
 terminal monitor 
 debugging vrrp state 
 debugging bfd event 
# When Switch A fails, the following output is displayed on Switch B. 
*Dec 17 14:44:34:142 2008 SwitchB BFD/7/EVENT:Send sess-down Msg, 
[Src:192.168.0.102,Dst:192.168.0.101,Vlan-interface2,Echo], instance:0, \
protocol:Track 
*Dec 17 14:44:34:144 2008 SwitchB VRRP/7/DebugState: IPv4 Vlan-interface2 | Virtual 
Router 1 : Backup --> Master   reason: The status of the tracked object \
changed 
# Display the detailed information about the VRRP group on Switch B. 
 display vrrp verbose 
IPv4 Standby Information: 
     Run Mode       : Standard 
     Run Method     : Virtual MAC 
 Total number of virtual routers : 1 
   Interface Vlan-interface2 
     VRID           : 1               Adver Timer  : 1 
     Admin Status   : Up              State        : Master 
     Config Pri     : 100             Running Pri  : 100 
     Preempt Mode   : Yes             Delay Time   : 0 
     Auth Type      : None 
     Virtual IP     : 192.168.0.10 
     Virtual MAC    : 0000-5e00-0101 
     Master IP      : 192.168.0.102
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    							 215 
   VRRP Track Information: 
     Track Object   : 1              State : Negative          Switchove\
r 
The output shows that when BFD detects that Switch A fails, it notifies VRRP through the track 
module to change the status of Switch B to master without waiting for a period three times the 
advertisement interval, so that a backup can quickly preempt as the master. 
Configuring BFD for the VRRP master to monitor the uplinks 
(available only on the HP 5500 EI) 
Network requirements 
•   As shown in Figure 58 , Switch A and Switch B belong to VRRP group 1, whose virtual IP address is 
192.168.0.10. 
•   The default gateway of the hosts in the LAN is 192.168.0.10. 
•   When Switch A works properly, the hosts in the LAN access the external network through Switch A. 
When Switch A detects that the uplink is down through BFD, it decreases its priority so that Switch 
B can preempt as the master, ensuring that the hosts in the LAN can access the external network 
through Switch B. 
Figure 58  Network diagram 
 
 
Configuration procedure 
1. Create VLANs, and assign corres ponding ports to the VLANs. Configure the IP address of each 
VLAN interface as shown in  Figure 58. (D
 etails not shown.) 
2. Configure BFD on Switch A: 
# Configure the source address of BFD echo packets as 10.10.10.10. 
 system-view 
Internet
Master
uplink device Backup
uplink device
Uplink
Virtual router
Virtual IP address: 192.168.0.10
Vlan-int2
192.168.0.101/24 Vlan-int2
192.168.0.102/24
Switch A
Master Switch B
Backup
Vlan-int3
1.1.1.1/24 Vlan-int3
1.1.1.2/24
L2 switch
Uplink
VRRP packets
BFD probe packets
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    							 216 
[SwitchA] bfd echo-source-ip 10.10.10.10 
3. Create a track entry to be associated  with the BFD session on Switch A: 
# Create track entry 1 to be associated with th e BFD session to check whether the uplink device 
with the IP address 1.1.1.2 is reachable. 
[SwitchA] track 1 bfd echo interface vlan-interface 3 remote ip 1.1.1.2 \
local ip 
1.1.1.1 
4.  Configure VRRP on Switch A: 
# Create VRRP group 1, and configure the vi rtual IP address of the group as 192.168.0.10. 
Configure the priority of Switch A in VRRP grou p 1 as 110. Configure VRRP group 1 to monitor the 
status of track entry 1. When the status of the tr ack entry becomes Negative, the priority of Switch 
A decreases by 20. 
[SwitchA] interface vlan-interface 2 
[SwitchA-Vlan-interface2] vrrp vrid 1 virtual-ip 192.168.0.10 
[SwitchA-Vlan-interface2] vrrp vrid 1 priority 110 
[SwitchA-Vlan-interface2] vrrp vrid 1 track 1 reduced 20 
[SwitchA-Vlan-interface2] return 
5.  Configure VRRP on Switch B: 
# Create VRRP group 1, and configure the vi rtual IP address of the group as 192.168.0.10. 
 system-view 
[SwitchB] interface vlan-interface 2 
[SwitchB-Vlan-interface2] vrrp vrid 1 virtual-ip 192.168.0.10 
[SwitchB-Vlan-interface2] return 
6. Verify the configuration: 
# Display the detailed information about the VRRP group on Switch A. 
 display vrrp verbose 
 IPv4 Standby Information: 
     Run Mode       : Standard 
     Run Method     : Virtual MAC 
 Total number of virtual routers : 1 
   Interface Vlan-interface2 
     VRID           : 1               Adver Timer  : 1 
     Admin Status   : Up              State        : Master 
     Config Pri     : 110             Running Pri  : 110 
     Preempt Mode   : Yes             Delay Time   : 0 
     Auth Type      : None 
     Virtual IP     : 192.168.0.10 
     Virtual MAC    : 0000-5e00-0101 
     Master IP      : 192.168.0.101 
   VRRP Track Information: 
     Track Object   : 1               State : Positive   Pri Reduced : 2\
0 
# Display the information about track entry 1 on Switch A. 
 display track 1 
Track ID: 1 
  Status: Positive 
  Duration: 0 days 0 hours 0 minutes 32 seconds 
  Notification delay: Positive 0, Negative 0 (in seconds) 
  Reference object:
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    BFD session: 
    Packet type: Echo 
    Interface  : Vlan-interface2 
    Remote IP  : 1.1.1.2 
    Local IP   : 1.1.1.1 
# Display the detailed information about the VRRP group on Switch B. 
 display vrrp verbose 
 IPv4 Standby Information: 
     Run Mode       : Standard 
     Run Method     : Virtual MAC 
 Total number of virtual routers : 1 
   Interface Vlan-interface2 
     VRID           : 1               Adver Timer  : 1 
     Admin Status   : Up              State        : Backup 
     Config Pri     : 100             Running Pri  : 100 
     Preempt Mode   : Yes             Delay Time   : 0 
     Become Master  : 2200ms left 
     Auth Type      : None 
     Virtual IP     : 192.168.0.10 
     Master IP      : 192.168.0.101 
The output shows that when the status of track entry 1 becomes  Positive, Switch A is the master, 
and Switch B the backup.  
# When the uplink of Switch A goes down, the status of track entry 1 becomes  Negative. 
 display track 1 
Track ID: 1 
  Status: Negative 
  Duration: 0 days 0 hours 0 minutes 32 seconds 
  Notification delay: Positive 0, Negative 0 (in seconds) 
  Reference object: 
    BFD session: 
    Packet type: Echo 
    Interface  : Vlan-interface2 
    Remote IP  : 1.1.1.2 
    Local IP   : 1.1.1.1 
# Display the detailed information about VRRP group 1 on Switch A. 
 display vrrp verbose 
 IPv4 Standby Information: 
     Run Mode       : Standard 
     Run Method     : Virtual MAC 
 Total number of virtual routers : 1 
   Interface Vlan-interface2 
     VRID           : 1               Adver Timer  : 1 
     Admin Status   : Up              State        : Backup 
     Config Pri     : 110             Running Pri  : 90 
     Preempt Mode   : Yes             Delay Time   : 0 
     Become Master  : 2200ms left 
     Auth Type      : None 
     Virtual IP     : 192.168.0.10
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