NEC IP8800/S2400 Series Troubleshooting Manual page 176

3.
Troubleshooting Functional Failures in Operation
Figure 3-23: Display Example of Configuration 3
(config)# show interfaces
interface gigabitethernet 1/2
switchport mode access
sflow forward ingress
!
(config)#
• See "3.23.1 Checking Filtering/QoS Setting
port subject to flow statistics.
• Specifying Source IP address for sFlow packets with "sflow source," check to see if the IP address is
assigned to the port of this system.
Figure 3-24: Display Example of Configuration 4
(config)# show sflow
sflow destination 192.1.1.1 6455
sflow sample 2048
sflow source 192.1.1.100
this system.
!
(config)#
(4) Checking NIF/port status
Execute the show interfaces command to check that up/down status of the physical port of this system or the
physical port connecting to the collector to be monitored by sFlow statistics is "active" (normal operation).
Figure 3-25: Display Example of Port Status
> show interfaces gigabitethernet 1/5
Date 2006/10/24 17:19:34 UTC
NIF1: active
Average:150Mbps/24Gbps
Port5: active up
Time-since-last-status-change:1:47:47
Bandwidth:10000kbps
Peak out:5Mbps at 15:44:36
Output rate:
Input rate:
Flow control send
Flow control receive:off
TPID:8100
>
Note: Confirm that "active" or "active up" is displayed at the underlined part.
If the port status is DOWN, see
Disabled or Is Disconnected."
(5) Checking settings of collector
• Confirm that the UDP port number (default: 6343) on the collector side is available to receive packets.
If the port is not ready for receiving packets, ICMP ([Type]Destination Unreachable [Code]Port Unreachable) will
be transmitted to this system.
• Confirm that other settings on the collector used are correct.
114
<- sflow forward must be set here.
<- This IP address must be one assigned to the port of
48-port 10BASE-T/100BASE-TX/1000BASE-T
Peak:200Mbps at 15:44:37
100BASE-TX full(auto)
Average out:5Mbps
Peak in:5Mbps at 15:44:18
4893.5kbps
4893.5kbps
:off
:
"3.6.1 Communication Is Disabled or Is
Information" to confirm that "filter" is not set for the physical
0012.e220.ec31
Average in:5Mbps
16.8kpps
16.8kpps
Disconnected" and
retry:0
"3.9.1 Communication Is