Hi, I have a basic router that is shaping traffic, and it seems to be
working at the moment.
We have a 100Mbit connection to the internet, however we get charged for
each mbit that we use and so have to shape/limit the traffic to avoid
huge bills and my boss getting cross!!
We have a /29 subnets set up as follows:
tc qdisc add dev eth0 root tbf rate 0.8Mbit latency 50ms burst 10k
tc qdisc add dev eth1 root tbf rate 0.6Mbit latency 50ms burst 10k
|--------------|
Internet (100Mbit) | | eth1 |---------|
------ Linux router ---------- Switch |
eth0 | | .105 |---------|
|--------------| .106 |
.107 .108
.109
.110
This setup seems to limit the traffic to ~1mbit to the internet at the
moment.
Basically I have a linux box with a few backup dns and mail servers on
them (hence eth1 has 3 ips) and then 3 servers attached to a 100mbit
switch, each with it''s own IP and full access.
However I now need to add a new server(s) to the switch on a different
/29 subnet. I want to ensure thaHi, I have a basic router that is
shaping traffic, and it seems to be
working at the moment.
We have a 100Mbit connection to the internet, however we get charged for
each mbit that we use and so have to shape/limit the traffic to avoid
huge bills!!
We have a /29 subnets set up as follows:
tc qdisc add dev eth0 root tbf rate 0.8Mbit latency 50ms burst 10k
tc qdisc add dev eth1 root tbf rate 0.6Mbit latency 50ms burst 10k
|--------------|
Internet (100Mbit) | | eth1 |---------|
------ Linux router ---------- Switch |
eth0 | | .105 |---------|
|--------------| .106 |
.107 .108
.109
.110
This setup seems to limit the traffic to ~1mbit to the internet at the
moment.
Basically I have a linux box with a few backup dns and mail servers on
them (hence eth1 has 3 ips) and then 3 servers attached to a 100mbit
switch, each with it''s own IP and full access.
However I now need to add a new server(s) to the switch on a different
/29 subnet. I want to ensure that the current .105/29 subnet continues
to receive 1mbit up and down and each server on the new subnet each
receives an individual 1mbit:
.105/29 - 1Mbit
New subnet .120/24 - 6Mbit Total
.120 - 1Mbit
.121 - 1Mbit
.122 - 1Mbit
.123 - 1Mbit
.124 - 1Mbit
.125 - 1Mbit
I want to ensure that the traffic out on eth0 is never more than 7Mbit
but the .105/24 subnet never users more than 1Mbit and the .120/29
subnet gets 6Mbit and each server on the .120/29 gets a min of 1Mbit but
can burst upto 6Mbit if the other servers are idle and that all traffic
over the switch can move at 100Mbit between each host. Ideally I don''t
want more than 7Mbit coming in on eth0 either.
Also is it possible to ensure that ssh traffic gets some priority so
that access isn''t too slow?
Is this possible? I was looking into the SLA section of the docs but
wasn''t entirely sure how to go about this.
Thanks
Jake
t the current .105/29 subnet continues
to receive 1mbit up and down and each server on the new subnet each
receives an individual 1mbit:
.105/29 - 1Mbit
New subnet .120/24 - 6Mbit Total
.120 - 1Mbit
.121 - 1Mbit
.122 - 1Mbit
.123 - 1Mbit
.124 - 1Mbit
.125 - 1Mbit
I want to ensure that the traffic out on eth0 is never more than 7Mbit
but the .105/24 subnet never users more than 1Mbit but the .120/29
subnet gets 6Mbit and each server gets a min of 1Mbit but can burst upto
6Mbit if the other servers are idle and that all traffic over the switch
can move at 100Mbit between each host. Ideally I don''t want more than
7Mbit coming in on eth0 either
Is this possible? I was looking into the SLA section of the docs but
wasn''t entirely sure how to go about this.
Thanks
Jake
--
Jake Stride <J.A.Stride@ncl.ac.uk>
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