Troubleshooting New Device Watches
Follow these procedures for new additions to Highlight that fail testing or activation, plus existing bearer watches that go “not contactable”
If a watch fails to test once added into Highlight Pending, possible reasons for this include the following:
1. Device configuration issues
- The SNMP Read Only community string is wrong or missing
- The SNMP Read Only community string contains a hash (#) character, which Highlight does not support.
Error displayed: "Device cannot be found"
- The device access-list has an incorrect or missing poller IP address
- (SNMP v3) The length of the key is less than the minimum 8 characters
- (SNMP v3) AES256 has been configured for encryption. Highlight only supports AES128 and DES
- Compare the Highlight SNMP community string with that in the device configuration
- Change the community string in the device configuration to exclude a hash (#)
- Check the device access-list includes the pollers' IP addresses
2. Other device issues
- The device is down or off-line
- The device is not SNMP MIB-2 compliant
- SNMP is disabled on the device
- The device has been up for a long time and a reboot then allows a techtest
Check the device status, and reboot if necessary
3. Network related issues
- There is no route from the poller to the device
- There is no route from the device to the poller
- SNMP is blocked across network
- Use ping and traceroute as a troubleshooting aids
- Check firewall logs for drops/blocks
- Consider using an alternative IP address in Highlight, selecting one of those configured on the device
4. Highlight issues
- The new watch cannot be reached from the default poller assigned to its parent folder. See section below Other issues: How to add watch on a different poller.
- The wrong IP address or SNMP community string is specified in Highlight - compare the Highlight SNMP community string with that in the device configuration
If a watch fails to activate with the message “Please contact support”, a possible reason for this includes the following:
Watch name already exists
Search for the watch name using the Admin Browse page. If found either rename the existing watch or the pending watch, if appropriate, or delete the new watch as a duplicate.
If not found then it is possible the same watch name has been used previously and deleted in the last 7 days. In this case contact us to investigate.
Mustard availability generally means the device is unreachable or the monitored interface does not exist. There is one other situation that Highlight displays mustard:
Watch IP address contains leading zero(es)
Check if the watch IP address has a zero following a dot, such as 172.16.100.01, or 172.016.100.1; if so the device will still techtest but Highlight fails to collect link health data and displays availability as mustard. Removing the leading zeroes will resolve this issue.
How to add watch on a different poller
If you need to add a watch to a location but it is not reachable from the default poller assigned to the parent folder then a workaround is required. This will involve either spoofing a new watch and changing it once live, or creating it elsewhere then moving it and changing its poller.
- Assign the alternative poller as a secondary to the target parent folder, via Edit Folder, Agent Selection, poller tab - adding "Third party poller" in the following example:
- Create the new watch in any location served by the alternative poller. Once activated move the new watch to its target location; then edit the watch and change the poller selection from the dropdown, as shown below. Techtest and save
- If it is not known which folder/location is served by the alternative poller, create a new watch in the target location, copying the IP address/SNMP community string from any working watch. Once activated, edit the new watch and change the IP address, community string, and poller selection from the dropdown. Techtest and save
- If you have any issues with this workaround please contact us to assist.
Dialer interface showing as Dormant
This can be considered as normal status for a dialer interface and safely selected for monitoring.
Whether a watch is symmetric (same speed inbound as outbound) or asymmetric (different speed inbound to outbound) is a property that cannot be changed in Highlight once a Watch is active.
If you need to change the watch type from Bearer (symmetric service) to ADSL (asymmetric service) to allow the In and Out speeds to be separately specified, we suggest the following approach:
- Suffix the current watch name with "-old" or similar
- Create a new watch with watch type of Asymmetric Line, using the same Main tab settings as the one to be changed
- Create any tests and add autodiscovery. Note that classes/VLANs/multilinks will only be discovered and associated with one watch so these will have to be unchecked on the original watch and the history lost.
- Once the new watch is active in Highlight, uncheck Polling on the old watch Main tab which will keep the old bearer statistics available. Also uncheck any autodiscovery options on the old watch.
- Once the statistics on the old bearer are no longer of interest, delete the old bearer watch
To change the Watch Type description there is now a Product Type field that can be used.