User guide

Canopy System User Guide Procedures for Troubleshooting
pmp-0229 (Mar 2013)
573
c. verify that the PC has an assigned IP address.
5. On each end of the link
a. access the General tab in the Configuration page of each module.
b. verify that the setting for Link Speeds (or negotiation) matches that of the
other module.
c. access the Radio tab in the Configuration page of each module.
d. verify that the Radio Frequency Carrier setting is checked in the Custom
Radio Frequency Scan Selection List.
e. verify that the Color Code setting matches that of the other module.
f. access the browser LAN settings (for example, at
Tools
Internet OptionsConnectionsLAN Settings in Internet
Explorer).
g. verify that none of the settings are selected.
h. access the Link Capacity Test tab in the Tools page of the module.
i. perform a link test. (See Procedure 37: Performing a Link Capacity Test on
Page 535.)
j. verify that the link test results show efficiency greater than 90% in both the
uplink and downlink (except as described under Comparing Efficiency in 1X
Operation to Efficiency in 2X Operation on Page 133).
k. execute ping.
NOTE: A ping size larger than 1494 Bytes to a module times out and fails.
However, a ping of this size or larger to a system that is behind a Canopy
module typically succeeds. It is generally advisable to ping such a system,
since Canopy handles that ping with the same priority as is given all other
transport traffic. The results are unaffected by ping size and by the load on
the Canopy module that brokers this traffic.
l. verify that no packet loss was experienced.
m. verify that response times are not significantly greater than
◦ 2.5 ms from BH to BH
◦ 4 ms from AP to SM
◦ 15 ms from SM to AP
n. replace any cables that you suspect may be causing the problem.
6. After connectivity has been re-established, reinstall network elements and
variables that you removed in Step 1.
NAT/DHCP-configured SM Has Lost or Does Not Establish
Connectivity
Before troubleshooting this problem, identify the NAT/DHCP configuration from the following
list: