Anyone of you having difficulty in troubleshooting MPLS as a beginner?
I did some research and take notes for myself and now it is for you to do reference as well.
MPLS troubleshooting can be divided into two main steps:
1) Verify routing information flow
2) Verify proper data flow
- Routing information flow troubleshooting requires verification of end-to-end routing information propagation between CE routers.
- Verification of the routing information flow should be done systematically, starting at the routing ingress CE and moving to the egress CE.
- Verification of the data flow should be done systematically, starting at the data flow ingress CE and moving to the egress CE.
There are three things to perform basic MPLS troubleshooting.
They are,
1) Preliminary steps in MPLS VPN Troubleshooting:
- Is CEF enabled?
- Are labels for IGP routes generated and propagated?
- Are large labeled packets propagated across the MPLS backbone (maximum transmission unit issues)?
2) Verify the routing information flow:
- Are CE routes received by a PE?
- Are routes redistributed into MP-BGP with proper extended communities?
- Are VPNv4 routes propagated to other PE routers?
- Is the BGP route selection process working correctly?
- Are VPNv4 routes inserted into VRFs on other PE routers?
- Are VPNv4 routes redistributed from BGP into the PE-CE routing protocol?
- Are IPv4 routes propagated to other CE routers?
3) Verify proper data flow:
- Is CEF enabled on the ingress PE router interface?
- Is the CEF entry correct on the ingress PE router?
- Is there an end-to-end label switched path tunnel (LSP tunnel) between PE routers?
- Is the LFIB entry on the egress PE router correct?
Do you have/know something that I missed out in my above list? Please assist me by letting know. Thanks.
Have a good day.
(Be knowledgeable, pass it on then)
I did some research and take notes for myself and now it is for you to do reference as well.
MPLS troubleshooting can be divided into two main steps:
1) Verify routing information flow
2) Verify proper data flow
- Routing information flow troubleshooting requires verification of end-to-end routing information propagation between CE routers.
- Verification of the routing information flow should be done systematically, starting at the routing ingress CE and moving to the egress CE.
- Verification of the data flow should be done systematically, starting at the data flow ingress CE and moving to the egress CE.
There are three things to perform basic MPLS troubleshooting.
They are,
1) Preliminary steps in MPLS VPN Troubleshooting:
- Is CEF enabled?
- Are labels for IGP routes generated and propagated?
- Are large labeled packets propagated across the MPLS backbone (maximum transmission unit issues)?
2) Verify the routing information flow:
- Are CE routes received by a PE?
- Are routes redistributed into MP-BGP with proper extended communities?
- Are VPNv4 routes propagated to other PE routers?
- Is the BGP route selection process working correctly?
- Are VPNv4 routes inserted into VRFs on other PE routers?
- Are VPNv4 routes redistributed from BGP into the PE-CE routing protocol?
- Are IPv4 routes propagated to other CE routers?
3) Verify proper data flow:
- Is CEF enabled on the ingress PE router interface?
- Is the CEF entry correct on the ingress PE router?
- Is there an end-to-end label switched path tunnel (LSP tunnel) between PE routers?
- Is the LFIB entry on the egress PE router correct?
Do you have/know something that I missed out in my above list? Please assist me by letting know. Thanks.
Have a good day.
(Be knowledgeable, pass it on then)
SkyPakistan providing latest update about Pakistan dramaz Pakistan Showbiz technology, bollywood, hollywood, lollywood, sport's stars, pakistan showbiz & gossips PakistanDramaz.
ReplyDeleteBuy Farm Fresh seasonal Mango Fruits online at best price. Send Mangoes to all Pakistan like Karachi, Lahore, Islamabad, Rawalpindi, Peshawar, Multan, Faisalabad, Hyderabad and Jhelum on door step fruitoyepk.
ReplyDeletemovers and packers in dubai | noorahmedtransports Noor Ahmad Transport is a Mover and Packer service provider in Dubai Marina. Pickup Truck Rental Dubai 1/3 Ton - 7/10 Ton Truck with Tail Lift. Home/Office Shifting, Man with van service in Dubai. Call: 050 651 2943
ReplyDeletemovers and packers in dubai marina Noor Ahmad Transport is a Mover and Packer service provider in Dubai Marina. Pickup Truck Rental Dubai 1/3 Ton - 7/10 Ton Truck with Tail Lift. Home/Office Shifting, Man with van service in Dubai. Call: 050 651 2943
ReplyDeleteIn adults, treatment for hydrocele typically goes away within six months, according to the Herbal Care Products. Treatment of hydrocele usually needs surgery if it’s a communicating hydrocele because it can lead to hernias or it causes discomfort. We prefer the Herbal Care Products Company, who is creating home remedies for patients. Herbal Treatment for Hydrocele is the “Cedical” product. Best Hydrocele Herbal Treatment help to improve swelling of the scrotum with fluid.
ReplyDeleteDiet Plan for Weight Loss. A healthy eating plan gives your body the nutrients it needs every day while staying within daily calorie goal for weight loss.
ReplyDeleteWe sell original Herbal Products composed of Natural Herbs Clinic obtained from the world’s top botanic gardens under the cautious administration of experts who are working day and night to make the herbal products even better and to increase the range so that people suffering from certain ailments which do not have any identified care as yet can benefit from our formulas.
ReplyDeleteHerbal Treatment for Polycythemia Vera read the Symptoms and Causes. Polycythemia Vera is a condition described by an increased number of red blood cells in the bloodstream.
ReplyDelete