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- About sourav6388
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05-17-2012
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05-31-2012
06:21 AM
so what i am understanding is defining a native vlan for a trunk recieve untagged data from that link. and will tag it using that native vlan id used on that port link. if not then what is other puspose of fixing a particular native vlan id over a trunk... Thanks
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05-31-2012
05:42 AM
so Vijay, as per disscusion and understanding i can conclude that there can multiple native vlans, good. so now i think we can not have multiple default vlans in a switch. as default vlan is a concept for whole switch rather than depending for a single. so putting it to purpose native vlan concept is used for utilizing untagged to be streamed to particuler vlan. " like native vlan is order for trunk port that :- put this untagged data coming on this trunk as tagged for defined native vlan" if this is likely true ????? please comment. and then using this tricky native vlan concept, we shall ignore native vlan mismatch error, as this mismatch is solving a definite purpose for us. and Default vlan is purposefull for pushing untagged data from one trunk to another making it commonly avaiable in our switched network. Please comment. Thanks sourav
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05-31-2012
05:32 AM
Hi Jon, thanks for your response, quite clear your answer is. can you help in understanding exact usage for native vlan. like on a Switch SW1,a T1(trunk) link have native vlan as10. so any untagged data that will be reieved on T1 link of this switch would be coming out like tagged for vlan 10. and for T2(Trunk-2) on switch SW1 whose defined native vlan is 30, similarly any untagged data recieved on it would be coming out as tagged for vlan 20 . and then all these packets which got named using native vlan concept can be used for further sharing to other links. please advice if my example is taking it right.
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05-31-2012
04:49 AM
Hi Vijay, can you explanin bit clearly difference btw, default vlan and native vlan. do both of them offer/process untagged packtes ? and i can not understand conccept for multiple native vlans, i am confused. if we have multiple native vlan in a switch then it would be like having untagged data from multiple vlans sources. please clarify with some short example, would be really greatfull. Thanks
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05-31-2012
02:48 AM
Hi Vijay, ok i can understand if we prevent a Vlan over trunk then its data will not pass from that trunk link, but i want to know more that how it comes possible that when a native vlan whose data have no identity tag for VLAN ID, how it would be checked that this data is also needed to be prevented to flow over link. because frames identity is tag and it comes from tag that this tag is to be prevented. not having a TAG and at same time preventing it to flow is quite a process. please explain. and i also want to to know can there be mulitple native vlans over a switch. is that possible. Thanks Sourav
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05-31-2012
02:01 AM
Hi all, i am having a query for Native vlan concepts. i am using a default vlan001 in a multiple switches network. But on the trunks between all switches, have removed passage of all vlans. But just allowed another vlan 10 which i am using for some purpose. Here my question raises, do my untagged data(Native Vlan data) will be able to travel over these trunk links or not. My surprise is if native vlan does not uses and vlan tag over trunks then, removing that default vlan001 from trunks does not allows even untagged data to flow. Please let me know How it actually should be, and this all comes into play. Thanks Sourav.
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05-23-2012
11:01 AM
Hello Giuseppe, Ok we are correcting this on priority. Thanks for support.
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05-23-2012
08:26 AM
Hi, ok i can understand procedure how to proceed. but one my question remains unanswered, we have not any loop back ip on this and also never used this IP (192.168.0.1) for any purpose and and also show ip route do not have any info for this ip, then how come this ip is getting learned on this router. i have no clue please suggest how to find out detail about this IP coming from,. Sourav
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05-22-2012
11:07 PM
Hi Giuseppe, i can understand your solution, but what here is one more problem , which is something done by pur previous IP planner of our team, in this ospf 100 process, six router are falling into this 100, but surprisingly two routers have same RID, 192.168.0.1, and this ip address is neither of loopback ip or any interface ip, and its also not manually congigured on these routers. what are other options for a router from where it can learn its Router ID, in such a case, here i am showing cutting from Running config for router, router ospf 100 log-adjacency-changes network 10.140.255.0 0.0.0.15 area 0 network 172.42.248.16 0.0.0.3 area 0 network 172.42.248.32 0.0.0.3 area 0 network 172.42.248.44 0.0.0.3 area 0 ! router ospf 200 router-id 172.42.251.49 log-adjacency-changes network 10.140.242.136 0.0.0.3 area 0 network 172.42.251.0 0.0.0.3 area 0 network 172.42.251.24 0.0.0.3 area 0 ! see there is no router ID defined for OSPF 100 any how. Please explain how is that possible. Thanks Sourav
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05-17-2012
01:28 AM
Hi am getting follwoing error logs in my routers, seems like i am having duplicate router ID in a router, but these mesages are being reflected from multiple Ge link towards router each for different link. please help and suggest checking following logs. %OSPF-4-FLOOD_WAR: Process 100 re-originates LSA ID 172.42.248.17 type-2 adv-rtr 192.168.0.1 in area 0 6w0d: %OSPF-4-DUP_RTRID_AREA: Detected router with duplicate router ID 192.168.0.1 in area 0 6w0d: %OSPF-4-DUP_RTRID_AREA: Detected router with duplicate router ID 192.168.0.1 in area 0 6w0d: %OSPF-4-FLOOD_WAR: Process 100 re-originates LSA ID 172.42.248.33 type-2 adv-rtr 192.168.0.1 in area 0 6w0d: %OSPF-4-DUP_RTRID_AREA: Detected router with duplicate router ID 192.168.0.1 in area 0 6w0d: %OSPF-4-DUP_RTRID_AREA: Detected router with duplicate router ID 192.168.0.1 in area 0 6w0d: %OSPF-4-FLOOD_WAR: Process 100 re-originates LSA ID 172.42.248.33 type-2 adv-rtr 192.168.0.1 in area 0 6w0d: %OSPF-4-DUP_RTRID_AREA: Detected router with duplicate router ID 192.168.0.1 in area 0 6w0d: %OSPF-4-DUP_RTRID_AREA: Detected router with duplicate router ID 192.168.0.1 in area 0 6w0d: %OSPF-4-FLOOD_WAR: Process 100 re-originates LSA ID 172.42.248.45 type-2 adv-rtr 192.168.0.1 in area 0 6w0d: %OSPF-4-DUP_RTRID_AREA: Detected router with duplicate router ID 192.168.0.1 in area 0 ######################### Do my routers with all ip having error have duplicate router id, or this message if reflected from all of them due to only single fault.,
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Labels:
05-31-2012
so what i am understanding is defining a native vlan for a trunk recieve
untagged data from that lin...
05-31-2012
so Vijay, as per disscusion and understanding i can conclude that there
can multiple native vlans, g...
05-31-2012
Hi Jon,thanks for your response, quite clear your answer is.can you help
in understanding exact usag...
05-31-2012
Hi Vijay,can you explanin bit clearly difference btw, default vlan and
native vlan.do both of them o...
05-31-2012
Hi Vijay,ok i can understand if we prevent a Vlan over trunk then its
data will not pass from that t...
05-31-2012
Hi all,i am having a query for Native vlan concepts.i am using a default
vlan001 in a multiple switc...
05-23-2012
Hi,ok i can understand procedure how to proceed.but one my question
remains unanswered,we have not a...
05-22-2012
Hi Giuseppe,i can understand your solution,but what here is one more
problem , which is something do...
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| Date Registered | 05-17-2012 01:20 AM |
| Date Last Visited | 08-18-2017 03:53 AM |
| Total Messages Posted | 11 |
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