02-27-2016 07:05 AM - edited 03-08-2019 04:45 AM
Hi guys;
I have two vlans in my router, and I found different vlans file transfer speed lower than same vlan.
computers in vlan 172 speed can reach 100mbps
computers in vlan 172 and vlan 192 is only 30mbps
interface Vlan172
ip address 172.16.1.1 255.255.255.0
ip virtual-reassembly in
ip tcp adjust-mss 1452
!
interface Vlan192
ip address 192.168.1.1 255.255.255.0
ip virtual-reassembly in
ip tcp adjust-mss 1452
02-27-2016 01:02 PM
Hi,
Are you using the same device to do the transfer for both vlans?
Are you using the same destination for both vlans?
HTH
02-27-2016 08:34 PM
yes, same computer, same conf, just changed its IP address.
02-27-2016 11:45 PM
ciscoreg2,
Which device are we using here? Also, please SPAN port while file transfer and try to match how much byte of data is transferred, it may be padding. But need to look into captures.
Regards,
Vivek Sharma
02-28-2016 01:45 AM
Hi ALL,
I tested on switch found speed is normal.
Is it because ehwic-4esg card performance poorer than switch?
Because I connected computers to ehwic-4esg on the router.
02-29-2016 05:18 AM
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Posting
Yes, an ISR switch module might offer lower performance than a L2 switch, but if you're using an ISR for VLAN routing, many do not have the performance capacity for LAN routing (as they were designed for slower WAN connections).
For LAN routing, for performance, you'll often want to use a L3 switch.
02-29-2016 03:55 PM
Is that anyway to optimize ISR switch module for VLAN routing?
02-29-2016 05:56 PM
Disclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
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In no event shall Author be liable for any damages wha2tsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
Yes, if your ISR supports it, use a module that does L3 switching on the module.
02-29-2016 10:44 PM
router model: 1941. Is it support?
03-01-2016 05:32 AM
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The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
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In no event shall Author be liable for any damages wha2tsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
Not sure. The following is the datasheet link for L3 ISR switch modules, but it may predate the 1941.
http://www.cisco.com/c/en/us/products/collateral/routers/3800-series-integrated-services-routers-isr/product_data_sheet0900aecd8028d15f.html
02-29-2016 11:29 PM
I think currently my conf is using L3 switch right? I setup different interfaces to different vlans;
interface Vlan172
ip address 172.16.1.1 255.255.255.0
!
interface Vlan192
ip address 192.168.1.1 255.255.255.0
03-01-2016 05:27 AM
Disclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer
In no event shall Author be liable for any damages wha2tsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
Maybe not, if your VLAN interfaces are defined on the ISR, itself, it would be what's performing L3 forwarding between VLANs.
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