TNSPING VS. REGULAR PING..! WHY SUCH A DIFFERENCE

From: Murali Vallath <murali_vallath_at_yahoo.com>
Date: Mon, 22 Dec 2003 17:29:24 -0800
Message-ID: <F001.005DAA9D.20031222172924@fatcity.com>

I have recently noticed in this one situation that there is a great difference between a tnsping vs a regular ping to the same server.

for example this tnsping took about 270 ms which is strange and its consistent

Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADD
RESS_LIST = (load_balance = on) (failover = on) (ADDRESS = (PROTOCOL = TCP)(HOST
= myhost1.com)(PORT = 1521)) (ADDRESS = (PROTOCOL = TCP)(HOST = myhost2.com)(
PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = xyzdb) (FAILOVER_MODE = (TYPE
= SELECT) (METHOD = BASIC) (RETRIES = 20) (DELAY = 15))))
OK (270 msec)

and a ping to the same host

Ping statistics for x.x.x.x:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 61ms, Maximum = 70ms, Average = 67ms

Why could there be such a difference?

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Author: Murali Vallath
  INET: murali_vallath_at_yahoo.com

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Received on Mon Dec 22 2003 - 19:29:24 CST