I am trying to figure out a way a method which might decrease the speed of internet gradually in my office LAN.

At 9am- 6 pm daily it is 55 Kbps,
From 6pm -7 pm daily it is 5 Kbps

Finally it becomes 55 kbps again at 7 pm

I changed squid.conf like this below
-----------------------
delay_pools 2
acl day time 18:00:19:00
delay_access 1 allow innove day
delay_access 2 allow innove day
delay_class 2 2
delay_parameters 2 5000/500000 5000/500000
delay_class 1 2
delay_parameters 1 55000/100000 55000/100000



It seems to work for new transfers made after 6pm.
BUT ,when I started downloading a software at 5:50 pm,its initial speed was 50Kbps and it continued to be that even after 6:10 pm when downloading finished(but i had hoped that it should be dropping to lower speed ..below 5k)

When i started downloading another file at 6:05 pm it stared at speed of around 4k which was fine.

SO DOES this imply,that once a file was being downloaded,it continues to have it's same transfer rate even after the timing of low bandwidth speed become effective.
OR it was my observation mistake
OR my configuration is wrong.


I am using :

1) Squid Cache: Version 2.5.STABLE1
configure options: --host=i386-redhat-linux --build=i386-redhat-linux --target=i386-redhat-linux-gnu --program-prefix= --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/usr/com --mandir=/usr/share/man --infodir=/usr/share/info --exec_prefix=/usr --bindir=/usr/sbin --libexecdir=/usr/lib/squid --localstatedir=/var --sysconfdir=/etc/squid --enable-poll --enable-snmp --enable-removal-policies=heap,lru --enable-storeio=aufs,coss,diskd,ufs --enable-ssl --with-openssl=/usr/kerberos --enable-delay-pools --enable-linux-netfilter --with-pthreads --enable-basic-auth-helpers=LDAP,NCSA,PAM,SMB,SASL,MSNT --enable-ntlm-auth-helpers=SMB,winbind --enable-external-acl-helpers=ip_user,ldap_group,unix_group,wbinfo_group,winbind_group

2)redhat 9

I believe the bandwidth throttling is based on when the download started. I am curious as to why you are doing this, just for my own education.

Basically the idea is to make the employees of an organisation know that it is time of office closing(indicated by drop in internet surfing) & they can go home.
After 7 pm , internet speed is again increased as it needed to run some cron jobs.