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HP 5500 Ei 5500 Si Switch Series Configuration Guide

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      Send operation times: 1000           Receive response times: 1000 \
      Min/Max/Average round trip time: 31/1328/33 
      Square-Sum of round trip time: 2844813 
      Last succeeded probe time: 2011-01-13 09:49:31.1 
    Extended results: 
      Packet loss in test: 0% 
      Failures due to timeout: 0 
      Failures due to disconnect: 0 
      Failures due to no connection: 0 
      Failures due to sequence error: 0 
      Failures due to internal error: 0 
      Failures due to other errors: 0 
      Packet(s) arrived late: 0 
    Voice results: 
     RTT number: 1000 
      Min positive SD: 1                     Min positive DS: 1 
      Max positive SD: 204                   Max positive DS: 1297 
      Positive SD number: 257                Positive DS number: 259 
      Positive SD sum: 759                   Positive DS sum: 1797 
      Positive SD average: 2                 Positive DS average: 6 
      Positive SD square sum: 54127          Positive DS square sum: 169\
1967 
      Min negative SD: 1                     Min negative DS: 1 
      Max negative SD: 203                   Max negative DS: 1297 
      Negative SD number: 255                Negative DS number: 259 
      Negative SD sum: 759                   Negative DS sum: 1796 
      Negative SD average: 2                 Negative DS average: 6 
      Negative SD square sum: 53655          Negative DS square sum: 169\
1776 
    One way results: 
      Max SD delay: 343                      Max DS delay: 985 
      Min SD delay: 343                      Min DS delay: 985 
      Number of SD delay: 1                  Number of DS delay: 1 
      Sum of SD delay: 343                   Sum of DS delay: 985 
      Square sum of SD delay: 117649         Square sum of DS delay: 970\
225 
      SD lost packet(s): 0                   DS lost packet(s): 0 
      Lost packet(s) for unknown reason: 0 
    Voice scores: 
      MOS value: 4.38                        ICPIF value: 0 
# Display the statistics of voice tests. 
[DeviceA] display nqa statistics admin test 
  NQA entry (admin admin, tag test) test statistics: 
    NO. : 1 
    Destination IP address: 10.2.2.2 
      Start time: 2011-01-13 09:45:37.8 
      Life time: 331 seconds 
      Send operation times: 4000           Receive response times: 4000 \
      Min/Max/Average round trip time: 15/1328/32 
      Square-Sum of round trip time: 7160528 
    Extended results:
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      Packet loss in test: 0% 
      Failures due to timeout: 0 
      Failures due to disconnect: 0 
      Failures due to no connection: 0 
      Failures due to sequence error: 0 
      Failures due to internal error: 0 
      Failures due to other errors: 0 
      Packet(s) arrived late: 0 
    Voice results: 
     RTT number: 4000 
      Min positive SD: 1                     Min positive DS: 1 
      Max positive SD: 360                   Max positive DS: 1297 
      Positive SD number: 1030               Positive DS number: 1024 
      Positive SD sum: 4363                  Positive DS sum: 5423 
      Positive SD average: 4                 Positive DS average: 5 
      Positive SD square sum: 497725         Positive DS square sum: 225\
4957 
      Min negative SD: 1                     Min negative DS: 1 
      Max negative SD: 360                   Max negative DS: 1297 
      Negative SD number: 1028               Negative DS number: 1022 
      Negative SD sum: 1028                  Negative DS sum: 1022 
      Negative SD average: 4                 Negative DS average: 5 
      Negative SD square sum: 495901         Negative DS square sum: 541\
9 
    One way results: 
      Max SD delay: 359                      Max DS delay: 985 
      Min SD delay: 0                        Min DS delay: 0 
      Number of SD delay: 4                  Number of DS delay: 4 
      Sum of SD delay: 1390                  Sum of DS delay: 1079 
      Square sum of SD delay: 483202         Square sum of DS delay: 973\
651 
      SD lost packet(s): 0                   DS lost packet(s): 0 
      Lost packet(s) for unknown reason: 0 
    Voice scores: 
      Max MOS value: 4.38                    Min MOS value: 4.38 
      Max ICPIF value: 0                     Min ICPIF value: 0 
 
  NOTE: 
The display nqa history  command cannot show you the results of voice tests. To know the result of a voice
test, use the  display nqa result  command to view the probe results of the latest NQA test, or use the 
display nqa statistics command to view the statistics of NQA tests. 
 
DLSw test configuration example 
Network requirements 
As shown in  Figure 50, conf igure NQA DLSw tests to test the response time of the DLSw device.
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Figure 50  Network diagram 
 
 
Configuration procedure 
Before you make the configuration, make sure the devices can reach each other. 
# Create a DLSw test group, and configure DLSw probe packets to use 10.2.2.2 as the destination IP 
address. 
 system-view 
[DeviceA] nqa entry admin test 
[DeviceA-nqa-admin-test] type dlsw 
[DeviceA-nqa-admin-test-dlsw] destination ip 10.2.2.2 
# Enable the saving of history records. 
[DeviceA-nqa-admin-test-dlsw] history-record enable 
[DeviceA-nqa-admin-test-dlsw] quit 
# Start DLSw tests. 
[DeviceA] nqa schedule admin test start-time now lifetime forever 
# Stop the DLSw tests after a period of time. 
[DeviceA] undo nqa schedule admin test 
# Display the result of the last DLSw test. 
[DeviceA] display nqa result admin test 
  NQA entry (admin admin, tag test) test results: 
    Destination IP address: 10.2.2.2 
      Send operation times: 1              Receive response times: 1 
      Min/Max/Average round trip time: 19/19/19 
      Square-Sum of round trip time: 361 
      Last succeeded probe time: 2011-01-22 10:40:27.7 
    Extended results: 
      Packet loss in test: 0% 
      Failures due to timeout: 0 
      Failures due to disconnect: 0 
      Failures due to no connection: 0 
      Failures due to sequence error: 0 
      Failures due to internal error: 0 
      Failures due to other errors: 0 
      Packet(s) arrived late: 0 
# Display the history of DLSw tests. 
[DeviceA] display nqa history admin test 
  NQA entry (admin admin, tag test) history record(s): 
    Index      Response     Status           Time 
    1          19           Succeeded        2011-01-22 10:40:27.7
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NQA collaboration configuration example 
Network requirements 
As shown in  Figure 51, configure a static route to Device C on Device A, with Device B as the next hop. 
Associate the static route, track entr y, and NQA test group to verify whether static route is active in real 
time. 
Figure 51  Network diagram 
 
 
Configuration procedure 
1. Assign each interface an IP  address. (Details not shown.) 
2. On Device A, configure a unicast static route an d associate the static route with a track entry. 
# Configure a static route, whose destination addr ess is 10.2.1.1, and associate the static route 
with track entry 1. 
 system-view 
[DeviceA] ip route-static 10.1.1.2 24 10.2.1.1 track 1 
3.  On Device A, create an NQA test group: 
# Create an NQA test group with the administrator name being  admin and operation tag being 
test . 
[DeviceA] nqa entry admin test 
# Configure the test type of the NQA test group as ICMP echo. 
[DeviceA-nqa-admin-test] type icmp-echo 
# Configure ICMP echo requests to use 10.2.1.1 as their destination IP address. 
[DeviceA-nqa-admin-test-icmp-echo] destination ip 10.2.1.1 
# Configure the device to perform test s at an interval of 100 milliseconds. 
[DeviceA-nqa-admin-test-icmp-echo] frequency 100 
# Create reaction entry 1. If the number of co nsecutive probe failures reaches 5, collaboration 
with other modules is triggered. 
[DeviceA-nqa-admin-test-icmp-echo] reaction 1 checked-element probe-fail\
 
threshold-type consecutive 5 action-type trigger-only 
[DeviceA-nqa-admin-test-icmp-echo] quit 
# Configure the test start time and  test duration for the test group. 
[DeviceA] nqa schedule admin test start-time now lifetime forever 
4. On Device A, create the track entry: 
# Create track entry 1, and associate it with reac tion entry 1 of the NQA test group (admin-test). 
[DeviceA] track 1 nqa entry admin test reaction 1
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Verifying the configuration 
# On Device A, display information about all the track entries. 
[DeviceA] display track all 
Track ID: 1 
  Status: Positive 
  Notification delay: Positive 0, Negative 0 (in seconds) 
  Reference object: 
    NQA entry: admin test 
    Reaction: 1 
# Display brief information about active ro utes in the routing table on Device A. 
[DeviceA] display ip routing-table 
Routing Tables: Public 
         Destinations : 5        Routes : 5 
 
Destination/Mask    Proto  Pre  Cost         NextHop         Interface 
 
10.1.1.0/24         Static 60   0            10.2.1.1        Vlan3 
10.2.1.0/24         Direct 0    0            10.2.1.2        Vlan3 
10.2.1.2/32         Direct 0    0            127.0.0.1       InLoop0 
127.0.0.0/8         Direct 0    0            127.0.0.1       InLoop0 
127.0.0.1/32        Direct 0    0            127.0.0.1       InLoop0 
The output shows that the static route with the ne xt hop 10.2.1.1 is active, and the status of the 
track entry is positive. The static route configuration works. 
# Remove the IP address of VLAN-interface 3 on Device B. 
 system-view 
[DeviceB] interface vlan-interface 3 
[DeviceB-Vlan-interface3] undo ip address 
# On Device A, display information about all the track entries. 
[DeviceA] display track all 
Track ID: 1 
  Status: Negative 
  Notification delay: Positive 0, Negative 0 (in seconds) 
  Reference object: 
    NQA entry: admin test 
    Reaction: 1 
# Display brief information about active ro utes in the routing table on Device A. 
[DeviceA] display ip routing-table 
Routing Tables: Public 
         Destinations : 4        Routes : 4 
 
Destination/Mask    Proto  Pre  Cost         NextHop         Interface 
 
10.2.1.0/24         Direct 0    0            10.2.1.2        Vlan3 
10.2.1.2/32         Direct 0    0            127.0.0.1       InLoop0 
127.0.0.0/8         Direct 0    0            127.0.0.1       InLoop0 
127.0.0.1/32        Direct 0    0            127.0.0.1       InLoop0
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The output shows that the next hop 10.2.1.1 of the  static route is not reachable, and the status of 
the track entry is negative. Th e static route does not work.
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    							 146 
Configuring sFlow 
Both bridge mode (Layer 2) and route mode (Layer 3) Ethernet ports support sFlow. The term interface 
i n  t h i s  ch a p t e r  c o l l e c t ive ly  refe r s  t o  t h e s e  t wo  t yp e s  o f  p o r t s.  Yo u  c a n  u s e  t h e   port link-mode  command to 
set an Ethernet port to operate in bridge or route mode (see  Layer 2—LAN Switching Configuration 
Guide). 
sFlow overview 
Introduction to sFlow 
Sampled Flow (sFlow) is a traffic monitoring technology mainly used to collect and analyze traffic 
statistics. 
As shown in  Figure 52, the sF
 low system involves an sFlow agent embedded in a device and a remote 
sFlow collector. The sFlow agent collects traffic stat istics and packet information from the sFlow-enabled 
interfaces and encapsulates them into sFlow packets . When the sFlow packet buffer is full, or the age 
time of sFlow packets is reached,  (the age time is one second), the sFlow agent sends the packets to a 
specified sFlow collector. The sFlow collector anal yzes the sFlow packets and displays the results. 
sFlow has the following two sampling mechanisms: 
•   Flow sampling: Packet-based sampling, used to obtain packet content information. 
•   Counter sampling: Time-based sampling, used to obtain port traffic statistics. 
Figure 52  sFlow system 
 
 
As a traffic monitoring technology, sFlow has the following advantages: 
•   Supporting traffic monitoring on Gigabit and higher-speed networks. 
•   Providing good scalability to allow one sFlow collector to monitor multiple sFlow agents. 
•   Saving cost by embedding the sFlow agent in a device, instead of using a dedicated sFlow agent 
device. 
 
  NOTE: 
Only the sFlow agent function is supported on the switch. 
 
Device
sFlow collector
Ethernet
headerUDPheadersFlow DatagramIPheaderFlow
sampling
Counter
sampling
sFlow agent
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sFlow operation 
sFlow operates in the following ways: 
1. Before enabling the sFlow function, configure the sFlow agent and sFlow collector on the device.  
2. With flow sampling enabled on an Ethernet  interface, the sFlow agent samples packets and 
encapsulates them into sFlow packe ts. For the configuration, see Configuring flow sampling. 
3. With counter sampling enabled on an Ethernet inte rface, the sFlow agent periodically collects the 
statistics of the interface and encapsulates the statistics into sFlow packets. For the configuration, 
see  Configuring flow sampling . 
Configuring sFlow 
Before configuring sFlow, complete the following tasks:  
•  Configure the IP address, flow sampling, and counter sampling of the sFlow collector on the device. 
•   Configure the sFlow collector.  
Configuring the sFlow agent and sFlow collector 
The sFlow feature enables the remote sFlow collecto r to monitor the network and analyze sFlow packet 
statistics. 
To configure the sFlow agent and sFlow collector: 
 
Step Command  Remarks 
1.   Enter system 
view.  system-view 
N/A 
2.  Specify the IP 
address for the 
sFlow agent.  sflow agent 
{ ip  ip-address  | ipv6  
ipv6-address }  Optional 
Not specified by default. The device 
periodically checks the 
existence of the sFlow 
agent address. If the sFlow agent has no IP 
address configured, the device automatically 
selects an interface IP address for the sFlow 
agent but does not save the selected IP address.
 
NOTE: 
•  HP recommends configuring an IP address 
manually for the sFlow agent. 
• Only one IP address can be specified for the 
sFlow agent on the device. 
3.   Configure the 
sFlow collector.  sflow collector 
collector-id { { ip 
ip-address  | ipv6  ipv6-address }  | 
datagram-size  size | description 
text  | port  port-number  |  time-out 
seconds  } *  By default, the device presets a number of sFlow 
collectors. 
Use the 
display sflow  command to display the 
parameters of the preset sFlow collectors.  
4.   Specify the 
source IP 
address of sent 
sFlow packets.  sflow source 
{ ip  ip-address  | ipv6  
ipv6-address  } *  Optional 
Not specified by default.
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Configuring flow sampling  
Step Command Remarks 
1.  Enter system view. 
system-view  N/A 
2.  Enter Layer 2 Ethernet 
interface view/Layer 3 
Ethernet interface view.  interface
 interface-type 
interface-number  Only the HP 5500 EI switch series 
supports this command on Layer 3 
Ethernet interfaces. 
3.
  Set the Flow sampling mode.  sflow sampling-mode 
{
 determine  | random  }  Optional 
random
 by default. 
4.  Set the interval for flow 
sampling.  sflow sampling-rate
 interval  Not set by default. 
5.  Set the maximum copied 
length of a sampled packet.  sflow flow max-header 
length 
Optional 
By default, up to 128 bytes of a sampled 
packet can be copied. You are 
recommended to use the default value.
 
6.  Specify the sFlow collector for 
flow sampling.  sflow flow collector 
collector-id
  No collector is specified for flow 
sampling by default. 
 
 
NOTE: 
The switch does not support the flow sampling mode  determine. 
 
Configuring counter sampling  
Step Command Remarks 
1.  Enter system view. 
system-view  N/A 
2.  Enter Layer 2 interface 
view/Layer 3 Ethernet 
interface view.  interface
 interface-type 
interface-number   Only the HP 5500 EI switch series supports 
Layer 3 Ethernet interface view. 
3.
  Set the interval for 
counter sampling.  sflow counter interval 
seconds Counter sampling is disabled by default. 
4.  Specify the sFlow 
collector for counter 
sampling.  sflow counter collector 
collector-id
  No collector is specified for counter 
sampling by default.  
 
Displaying and maintaining sFlow 
 
Task Command Remarks 
Display sFlow configuration 
information.  display sflow [ 
slot slot-number  ] [ | 
{  begin |  exclude | include  } 
regular-expression  ]   Available in any view
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sFlow configuration example 
Network requirements 
As shown in Figure 53, Ho st A is connected with the server through the device (sFlow agent). 
Enable sFlow (including flow sampling and counter sampling) on GigabitEthernet 1/0/1 to monitor 
traffic on the port. The device sends sFlow packets through GigabitEthernet 1/0/3 to the sFlow collector, 
which analyzes the sFlow packets and displays results. 
Figure 53  Network diagram 
 
 
Configuration procedure 
1. Configure the sFlow agent and sFlow collector: 
# Configure the IP address of vlan-int erface 1 on Device as 3.3.3.1/16. 
 system-view 
[Device] interface vlan-interface 1 
[Device-Vlan-interface1] ip address 3.3.3.1 16 
[Device-Vlan-interface1] quit 
# Specify the IP address for the sFlow agent. 
[Device] sflow agent ip 3.3.3.1 
# Specify sFlow collector ID 2, IP address 3.3.3. 2, the default port number, and description of 
netserver  for the sFlow collector. 
[Device] sflow collector 2 ip 3.3.3.2 description netserver 
2. Configure counter sampling: 
# Set the counter sampling interval to 120 seconds. 
[Device] interface gigabitethernet 1/0/1 
[Device-GigabitEthernet1/0/1] sflow counter interval 120 
# Specify sFlow collector 2 for counter sampling. 
[Device-GigabitEthernet1/0/1] sflow counter collector 2 
3. Configure flow sampling: 
# Set the Flow sampling mode and sampling interval. 
[Device-GigabitEthernet1/0/1] sflow sampling-mode random 
[Device-GigabitEthernet1/0/1] sflow sampling-rate 4000 
# Specify sFlow collector 2 for flow sampling. 
[Device-GigabitEthernet1/0/1] sflow flow collector 2 
3.3.3.2/16
Host A1.1.1.1/16 VLAN 1
3.3.3.1/16 GE1/0/2
2.2.2.1/16
GE1/0/1
1.1.1.2/16Server2.2.2.2/16Device
sFlow Collector
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