~~~~~~ 3rd Lecture - Networking IP Subnetting ~~~~~~~~

[k2s]

[quote author=loser link=topic=234570.msg2918748#msg2918748 date=1315440355]
Ante subnetting peddaga emlevu malli lecture chepthe konni doubts clear avutayi ani cheppamannanu....kani OSPF meeda konni doubts unayi
[/quote]adugu .... ani cheppana........

akkada NO ratio >15% , so class kastam cheppatam......

neeku emi doubts oo adugu, will try to clear

[mrdecent]

[quote author=k2s link=topic=234570.msg2918758#msg2918758 date=1315440471]
adugu .... ani cheppana........

akkada NO ratio >15% , so class kastam cheppatam......

neeku emi doubts oo adugu, will try to clear
[/quote]ok First doubt...LTL bug ante ento cheppava please adedo Multicast packets ni Block chestadi anta..chala google chesanu kani clear info dorkaledu ekkada...adi oka sari explain please

[k2s]

[quote author=loser link=topic=234570.msg2918767#msg2918767 date=1315440565]
ok First doubt...LTL bug ante ento cheppava please adedo Multicast packets ni Block chestadi anta..chala google chesanu kani clear info dorkaledu ekkada...adi oka sari explain please
[/quote]

b'fore that..... pls check the IOS version running in node,
Some of the bugs on LTL.... may be useful : [url=http://www.cisco.com/en/US/docs/ios/12_2sr/release/notes/122SRcavs1.html]http://www.cisco.com/en/US/docs/ios/12_2sr/release/notes/122SRcavs1.html[/url]
the most common 1 is

CSCsl63149

Symptoms: If you repeatedly use the test mcast ltl command on a switch processor (SP), a buffer leak is introduced. The SP may finally run out of buffers and the system crashes.

Conditions: This symptom occurs when the test mcast ltl command is used repeatedly on an SP.

Workaround: There is no workaround.

[mrdecent]

[quote author=k2s link=topic=234570.msg2918793#msg2918793 date=1315440844]
b'fore that..... pls check the IOS version running in node,
Some of the bugs on LTL.... may be useful : [url=http://www.cisco.com/en/US/docs/ios/12_2sr/release/notes/122SRcavs1.html]http://www.cisco.com/en/US/docs/ios/12_2sr/release/notes/122SRcavs1.html[/url]
the most common 1 is

CSCsl63149

Symptoms: If you repeatedly use the test mcast ltl command on a switch processor (SP), a buffer leak is introduced. The SP may finally run out of buffers and the system crashes.




Conditions: This symptom occurs when the test mcast ltl command is used repeatedly on an SP.

Workaround: There is no workaround.
[/quote]


thankyou thankyou thankyou thankyou thankyou..main ga service provider switches meeda untadha???? sCo_^Y sCo_^Y sCo_^Y sCo_^Y

[k2s]

[quote author=loser link=topic=234570.msg2918906#msg2918906 date=1315442012]

thankyou thankyou thankyou thankyou thankyou..main ga service provider switches meeda untadha???? sCo_^Y sCo_^Y sCo_^Y sCo_^Y
[/quote]

mainly for this IOS versions Caveats for 12.2(33)SRE through 12.2(33)SRE4

end "S"RE ante ee Service Provider ani
& more over all 12.2(xx) version IOSs are for high end routers/L3 switches ( like 65k, 12k GSRs etc)

[mrdecent]

Ok 2nd Doubt...All possible reasons for OSPF neighbor in INIT..in where Service Provider Network in Between 2 Customer End Routers....ante I mean madyalo oka MPLS cloud undi anuko..What could be the Possible Reasons for My routers Not forming Full neighbors???...oka suggestions Cisco Links eyyaku please...koddiga explain cheyi

[ToughGuy]

What the FROCK ..intiki vachi ..first ee thread ee open sesaa ...disappoint ayya brother .......  calling taadulu vesi sollu chestharu ...naalanti vallu disco chestharu ..i agree ...kaani saduvu daggara enti idi???  sFun_duh sFun_duh

[indian308]

nice thread nice thread nice thread nice thread you rock you rock

[k2s]

[quote author=!!!! FeRRo !!!! link=topic=234570.msg2918981#msg2918981 date=1315442937]
What the FROCK ..intiki vachi ..first ee thread ee open sesaa ...disappoint ayya brother .......  calling taadulu vesi sollu chestharu ...naalanti vallu disco chestharu ..i agree ...kaani saduvu daggara enti idi???  sFun_duh sFun_duh
[/quote]emi cheddam...... i m very strict in poll results....  J@#D

[k2s]

[quote author=loser link=topic=234570.msg2918975#msg2918975 date=1315442883]
Ok 2nd Doubt...All possible reasons for OSPF neighbor in INIT..in where Service Provider Network in Between 2 Customer End Routers....ante I mean madyalo oka MPLS cloud undi anuko..What could be the Possible Reasons for My routers Not forming Full neighbors???...oka suggestions Cisco Links eyyaku please...koddiga explain cheyi
[/quote]full neigbhor ship between which routers ??

CE-PE ki madya or PE-PE madya or PE-P madya or CE-CE madya ??

[ToughGuy]

[quote author=k2s link=topic=234570.msg2918992#msg2918992 date=1315443058]
emi cheddam...... i m very strict in poll results....  J@#D
[/quote]
poll enduku cheppu ??  interest vunna vallu vastharu ...interest leni vallu thread kooda open cheyyaru ...evaraina natakalu vesthe ee taadu loki vachhi ..nenu soosukuntaa ..nuvvu kaani amma

[mrdecent]

[quote author=k2s link=topic=234570.msg2919000#msg2919000 date=1315443130]
full neigbhor ship between which routers ??

CE-PE ki madya or PE-PE madya or PE-P madya or CE-CE madya ??
[/quote]

CE-CE madya..Na service provider MPLS cloud lo unnadu na CE routers point to point link with Multiple VLAN'S..

[k2s]

[quote author=loser link=topic=234570.msg2919011#msg2919011 date=1315443290]
CE-CE madya..Na service provider MPLS cloud lo unnadu na CE routers point to point link with Multiple VLAN'S..
[/quote]
check the basics rules of forming adjacency :


*Must pass the authentication process
■ Must be in the same primary subnet, including same subnet mask
■ Must be in the same OSPF area
■ Must be of the same area type (stub, NSSA, and so on)
■ Must not have duplicate RIDs
■ OSPF Hello and Dead timers must be equal


If all are passed..... then it could be many reasons like
* CE's Loopback not getting advertised to ISP- check the connectivity between CE's by ping
* check " sh ip ospf neig detail " on both CE's to check what is OSPF router ID
* check if any redistribution is causing problem or any route filters

Let me think of other possibilities . Meanwhile , naku both CE's "show run | b r ospf " output ivvu

[mrdecent]

[quote author=k2s link=topic=234570.msg2919034#msg2919034 date=1315443639]
check the basics rules of forming adjacency :


*Must pass the authentication process
■ Must be in the same primary subnet, including same subnet mask
■ Must be in the same OSPF area
■ Must be of the same area type (stub, NSSA, and so on)
■ Must not have duplicate RIDs
■ OSPF Hello and Dead timers must be equal


If all are passed..... then it could be many reasons like
* CE's Loopback not getting advertised to ISP- check the connectivity between CE's by ping
* check " sh ip ospf neig detail " on both CE's to check what is OSPF router ID
* check if any redistribution is causing problem or any route filters

Let me think of other possibilities . Meanwhile , naku both CE's "show run | b r ospf " output ivvu
[/quote]


Sorry baa..ippudu na deggara emi details levu..oka chinna doubt naku koncham service provider point of view lo cheppava reasons i mean Layer 2-2.5 Mpls cloud tho emi Reasons undochu if customer side everything is good and Layer 1 is also fine?????

[k2s]

[quote author=loser link=topic=234570.msg2919041#msg2919041 date=1315443838]

Sorry baa..ippudu na deggara emi details levu..oka chinna doubt naku koncham service provider point of view lo cheppava reasons i mean Layer 2-2.5 Mpls cloud tho emi Reasons undochu if customer side everything is good and Layer 1 is also fine?????
[/quote]

interms of ISP point of view aitey...... major frequent problem is LDP Sync,