TCP Slow Connection ?

The real problem is I did not change to DNS server's address

in one of the /etc/resolv.conf.

Thanks to

varshney@pacbell.net

prh@ece.iit.edu (Paul R. Hybert)

for their quick and acurate replies..

eric

-----------------------------Original Post--------------------------------------

>Dear Sun Gurus,

>

>I have 2 SunUltra-1 with Solaris 2.5.1 in same LAN segment , one(A) is running

>Oracle Database, and the other one(B) with default system setup only.(No NIS

>running)

>

>The symptom is,

>~~~~~~~~~~~~~~~

> telnet from PC to A, after SYN/SYN/ACK handshake, it takes about 50 seconds

> to get login prompt. (monitored from Lan Analyzer) , after login,

> everything just works fine. also the same with ftp.

> while telnet from PC to B and telnet from B to A is ok.

>

> there is another Sun Sparc-1000 running Oracle has the same symptom,

> and another Sun Sparc-20 running Oracle has no login problem.

>

>ping from A to PC shows

>~~~~~~~~~~~~~~~~~~~~~~~

> sunul01# ping -s 128.1.150.12(PC's IP Addr.)

> PING 128.1.150.12: 56 data bytes

> 64 bytes from 128.1.150.12: icmp_seq=0. time=1. ms

> 64 bytes from 128.1.150.12: icmp_seq=1. time=4001. ms <---

> 64 bytes from 128.1.150.12: icmp_seq=2. time=3001. ms

> 64 bytes from 128.1.150.12: icmp_seq=3. time=2002. ms

> 64 bytes from 128.1.150.12: icmp_seq=4. time=1002. ms <---

> 64 bytes from 128.1.150.12: icmp_seq=5. time=3. ms

> 64 bytes from 128.1.150.12: icmp_seq=6. time=0. ms

>

>My question is

>~~~~~~~~~~~~~~~

> It is obvious not a Lan cable problem, what might cause such slow

> connection ?

>

>TIA

>

>Eric

>

>

[2670 byte] By [CodeProf.com] at [2007-12-25 10:10:00]