Symptoms

If there are many zones (e.g. 1800) a stats request for all zone stats will produce a reply message too large to be sent in one attempt. zxfrd will stall on a second attempt to send and subsequent stats requests/responses will be blocked.

Impact

Web interface appears to hang waiting for zxfrd to reply.

Conditions

Config with many dns-express zones. Attempt access through the web interface (however, tmsh works).

Workaround

Only view zone stats through tmsh. Otherwise, if stats are hung, perform a 'bigstart restart zxfrd'.

Fix Information

Bug fixed in zxfrd to continue large response processing.

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips