[LARTC] filter

From: "Victor" <victor@ambra.ro>
To: lartc@vger.kernel.org
Subject: [LARTC] filter
Date: Wed, 08 Oct 2003 22:46:53 +0000	[thread overview]
Message-ID: <marc-lartc-106565321305922@msgid-missing> (raw)

The difrence betwen these 2 configurations is only the prio parameter from
the second filter, from each configutation.
(tc filter add dev eth0 parent 1: prio 5 protocol ip u32 ht 800:: match ip
src 80.97.24.0/24 hashkey mask 0x000000ff at 12 link 2:)

Configuration 1

tc qdisc add dev eth0 root handle 1: htb
tc class add dev eth0 parent 1: classid 1:1 htb rate 500Kbit prio 1
quantum 2000
tc class add dev eth0 parent 1:1 classid 1:201 htb rate 4Kbit ceil 500Kbit
prio 0 quantum 2000
tc filter add dev eth0 parent 1: prio 1 handle 2: protocol ip u32 divisor 256
tc filter add dev eth0 parent 1: prio 5 protocol ip u32 ht 800:: match ip
src 80.97.24.0/24 hashkey mask 0x000000ff at 12 link 2:
tc filter add dev eth0 prio 1 protocol ip u32 ht 2:01 match ip src
80.97.24.1 flowid 1:201

Configuration 2

tc qdisc add dev eth0 root handle 1: htb
tc class add dev eth0 parent 1: classid 1:1 htb rate 500Kbit prio 1
quantum 2000
tc class add dev eth0 parent 1:1 classid 1:201 htb rate 4Kbit ceil 500Kbit
prio 0 quantum 2000
tc filter add dev eth0 parent 1: prio 1 handle 2: protocol ip u32 divisor 256
tc filter add dev eth0 parent 1: prio 1 protocol ip u32 ht 800:: match ip
src 80.97.24.0/24 hashkey mask 0x000000ff at 12 link 2:
tc filter add dev eth0 prio 1 protocol ip u32 ht 2:01 match ip src
80.97.24.1 flowid 1:201

Configuration 1
tc filter show dev eth1
shows the next lines:
filter parent 1: protocol ip pref 1 u32
filter parent 1: protocol ip pref 1 u32 fh 801: ht divisor 1
filter parent 1: protocol ip pref 1 u32 fh 2: ht divisor 256
filter parent 1: protocol ip pref 1 u32 fh 2:1:800 order 2048 key ht 2 bkt
1 flowid 1:201
  match 50611801/ffffffff at 12
filter parent 1: protocol ip pref 1 u32 fh 800: ht divisor 1
filter parent 1: protocol ip pref 1 u32 fh 800::800 order 2048 key ht 800
bkt 0 link 2:
  match 50611800/ffffff00 at 12
    hash mask 000000ff at 12
filter parent 1: protocol ip pref 5 u32
filter parent 1: protocol ip pref 5 u32 fh 801: ht divisor 1
filter parent 1: protocol ip pref 5 u32 fh 2: ht divisor 256
filter parent 1: protocol ip pref 5 u32 fh 2:1:800 order 2048 key ht 2 bkt
1 flowid 1:201
  match 50611801/ffffffff at 12
filter parent 1: protocol ip pref 5 u32 fh 800: ht divisor 1
filter parent 1: protocol ip pref 5 u32 fh 800::800 order 2048 key ht 800
bkt 0 link 2:
  match 50611800/ffffff00 at 12
    hash mask 000000ff at 12

Configuration 1
tc filter show dev eth1
shows the next lines:

filter parent 1: protocol ip pref 1 u32
filter parent 1: protocol ip pref 1 u32 fh 2: ht divisor 256
filter parent 1: protocol ip pref 1 u32 fh 2:1:800 order 2048 key ht 2 bkt
1 flowid 1:201
  match 50611801/ffffffff at 12
filter parent 1: protocol ip pref 1 u32 fh 800: ht divisor 1
filter parent 1: protocol ip pref 1 u32 fh 800::800 order 2048 key ht 800
bkt 0 link 2:
  match 50611800/ffffff00 at 12
    hash mask 000000ff at 12

Why the configutaion1 has many filters than configuration2?
How can the prio paramenter influence this?
What is the range for the prio parameter in the filter context?
Thank you.

Victor

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