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VLAN Network latency

ahandono2000
Occasional Contributor

VLAN Network latency

Finally I can setup intervlan routing on single switch 4500G, thanks to Fred for pointing me some light.



Now I facing another weird issue, here is the scenario :



1. Got my 4500G, set port #1 to VLAN 1 with vlan interface 192.168.10.43



2. Set port #2 to VLAN 2 with vlan interface 192.168.16.43



3. PC A connected to port #1 (VLAN 1) with IP 192.168.10.100



4. PC B connected to port #2 (VLAN 2) with IP 192.168.16.100



5. Both PC are directly connected to the switch



 



When I do pinging from PC A to switch, I got following result :



Reply from 192.168.10.43: bytes=32 time=1ms TTL=255



But, (here comes the problem), when I do pinging from PC B to switch, I got different result :



Reply from 192.168.16.43: bytes=32 time=205ms TTL=225



Even sometimes I got 550ms...



 



Is this problem related to VLAN setting again ?



Update: typo in PC B ip address - thanks Fred



This message was edited by ahandono2000 on 7-20-10 @ 7:53 PM
3 REPLIES
ahandono2000
Occasional Contributor

Re: VLAN Network latency

Finally I can setup intervlan routing on single switch 4500G, thanks to Fred for pointing me some light.



Now I facing another weird issue, here is the scenario :



1. Got my 4500G, set port #1 to VLAN 1 with vlan interface 192.168.10.43



2. Set port #2 to VLAN 2 with vlan interface 192.168.16.43



3. PC A connected to port #1 (VLAN 1) with IP 192.168.10.100



4. PC B connected to port #2 (VLAN 2) with IP 192.168.16.100



5. Both PC are directly connected to the switch



 



When I do pinging from PC A to switch, I got following result :



Reply from 192.168.10.43: bytes=32 time=1ms TTL=255



But, (here comes the problem), when I do pinging from PC B to switch, I got different result :



Reply from 192.168.16.43: bytes=32 time=205ms TTL=225



Even sometimes I got 550ms...



 



Is this problem related to VLAN setting again ?



Update: typo in PC B ip address - thanks Fred



This message was edited by ahandono2000 on 7-20-10 @ 7:53 PM
Fred_Mancen_1
Super Advisor

Re: VLAN Network latency

Are you sure that the address of the host that is connected to VLAN B is right? It's the same address of its gateway (VLAN Interface 2: 192.168.16.43). If you are using this address, you have to change it to a different IP from the gateway, but in the same network segment, because you are actually pinging the localhost, not the switch.



Regards



ahandono2000
Occasional Contributor

Re: VLAN Network latency

Ups, sorry about my typo



PC B ip address is 192.168.16.100 because ip 192.168.16.43 already assign to interface vlan 2 on switch.