High DNS resolution page times in HSPA networks

[melkaiy]

dear experts,

We are experiencing high DNS resolution page times in HSPA, any known parameters and factors affected to improve such latency?

Your advices is hig appreciated.

thanks.

[rosan]

PCH/Fach to DCH transition parameters can cause a delay since DNS query is a small packet and it will be carried over RACH/FACH if your transition settings are too relaxed.

rosan

[melkaiy]

thanks any reco from your networks?

[rosan]

Which vendor you are using?

rosan

[melkaiy]

Huawei and e*******

[oswe]

PCH/Fach to DCH transition parameters can cause a delay since DNS query is a small packet and it will be carried over RACH/FACH if your transition settings are too relaxed.

rosan

this is the kind of stuff ive never seen... DNS query and many other IP-related procedures... :-((
very interesting

[melkaiy]

any reference we can use to see the resolution of http from the signalling?

[rosan]

You have to use packet trace

rosan

[melkaiy]

any software please?

[rosan]

Wireahark

rosan

[melkaiy]

can u please share the installer?

[webkasperl]

it is free tool and can be downloaded from their webpage wireshark.org

[webkasperl]

By the way, triggering faster upswitch to DCH can be done with small threshold for event 4a or even better some feature to trigger direct PCH to HSPA transition

[melkaiy]

adjusting the cell state transition timer is an RNC parameter, right? how 'bout on a cell-level any ideas?

[melkaiy]

guys any recos in dch to fach inactivity timer? appreciate if you could include the exact parameter name and values.