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Forum Discussion
VLAN bandwidth shaping
Hello, We have 5 vlans. Our ISP gives us 100 MB/s up and down to the internet. We wish to give one of the vlans a minimum guarantee bandswidth of 50. Is this possible?
Hi kbridge,
Welcome to our community!
I suggest that Class of Service(CoS) function can meet your requirement.
For the detailed configuration , please refer to the link in Chapter11 CoS Queuing http://www.downloads.netgear.com/files/GSM7000/Documentation/7000_series_SWA_8.0.3_1Nov10.pdf?cid=wmt_netgear_organic
As there is 5 VLANs in your switch, I suggest at first, you need to mapping different VLAN to different Queue(via ACL function), and then set the guarntee bandwidth based on the queue.
For example:
step1. mapping VLAN12 traffic to queue 1
ip access-list map_vlan12_to_queue1
permit ip any any assign-queue 1
exit
step2. set the guarntee bandwidth(assume 1G port, 50Mbps should be 5%) based on the queue in the vlan12 members port
interface 1/0/1
cos-queue min-bandwidth 0 5 0 0 0 0 0
exit
Hope that it helps !
Eric_z
NETGEAR Employee
Thank you for the solution. Because I only need to guarantee the bandwidth on one vlan, would I need to run the ip access-list map once, and then for each port assigned to vlan 20, run the second command?
\how would I test that this works? Would I start a large file transfer on vlan 20 and another on a different vlan? If vlan 20 stays above 50 MB/s, then I know its working?
ip access-list map_vlan20_to_queue1
permit ip 172.16.2.0 any assign-queue 1
exit
interface 1/0/1
cos-queue min-bandwidth 0 5 0 0 0 0 0
exit
Retired_Member wrote:Hi kbridge,
Welcome to our community!
I suggest that Class of Service(CoS) function can meet your requirement.
For the detailed configuration , please refer to the link in Chapter11 CoS Queuing http://www.downloads.netgear.com/files/GSM7000/Documentation/7000_series_SWA_8.0.3_1Nov10.pdf?cid=wmt_netgear_organic
As there is 5 VLANs in your switch, I suggest at first, you need to mapping different VLAN to different Queue(via ACL function), and then set the guarntee bandwidth based on the queue.
For example:
step1. mapping VLAN12 traffic to queue 1
ip access-list map_vlan12_to_queue1
permit ip any any assign-queue 1
exit
step2. set the guarntee bandwidth(assume 1G port, 50Mbps should be 5%) based on the queue in the vlan12 members port
interface 1/0/1
cos-queue min-bandwidth 0 5 0 0 0 0 0
exit
Hope that it helps !
Eric_z
NETGEAR Employee
Hi kbridge,
Correct! You can execute command as you write below.
But one reminder, you said 50MB/s, not 50Mb/s, right? If it is 50MB/s, equal to 400Mb/s(assume the pysical port is 1Gbps, it should be 40%), so the second command should be:
cos-queue min-bandwidth 0 40 0 0 0 0 0
Hope that it helps !
Eric_z
NETGEAR Employee
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