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- About Renan Abreu
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Member since
12-20-2012
139
Posts
61
Helpful
14
Solutions
12-13-2018
08:11 AM
If you have External routes you need to let the database know how to access them, even though you are only using area 0.
If you only have area 0 you won't see an LSA Type 4, you are right about that, you can disregard the generation of type 4 as you only have that one area.
We still need to do the calculation to find the device injecting the external routes though.
The router-id could have been set if there was an interface with that IP when the OSPF process was created, later on that interface was moved to a VRF but the process will still have that router-id unless you clear it.
As this is not generated by a type 4, I guess you could see something if you run show ip ospf database router 172.26.100.2.
Can you check that?
... View more
12-13-2018
07:31 AM
You are receiving a Type 4 LSA for that device. If you were to advertise that router-id inside the OSPF process, you would see an LSA Type 1 (or even a 5 depending how you are advertising it), but you would still need to know how to access an external route, thus the information on how to access the ASBR injecting external routes into the network.
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12-13-2018
07:07 AM
You do not need the IP used as the router-id / advertisement router to be reachable.
You can check if that device is reachable by checking show ip ospf border-router.
... View more
12-12-2018
07:28 AM
That's a tough question on how fast you should monitor it, I guess the answer would be as fast as you want it to failover. The most common I see is usually 5 seconds (This changes how quickly you send probes on links with actual data, so more things change than just the failover time).
This command is on the master hub, so, unfortunately, it would apply to all your branches. This is usually used on specific traffic classes (dcsp) that you want a fast failover, never seen it used to overcome a problematic link.
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12-12-2018
06:44 AM
When you mentioned that the link fluctuates, what does it mean? Do you actually lose the link? Does the link actually go down or you just see packet drops from time to time? (it looks like packet drops as even EIGRP is being lost).
iWAN is all about monitoring and failing over. If the criteria for the link to failover to a secondary path is matched, you will perform it within the monitor-interval period. If you need a quicker failover than 30 seconds, you can adjust it manually.
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12-12-2018
06:12 AM
Hi Jatinder,
The branch sites are also testing the links through their BRs using Smart Probes.
The default monitor time is 30 seconds, it can be changed with the command "monitor-interval".
... View more
Created by
Renan Abreu
in Other Service Provider Subjects
in Other Service Provider Subjects
12-10-2018
06:32 AM
12-10-2018
06:32 AM
It depends on how you have your QoS configured.
If you used percentage on all of your classes, I would expect only the bandwidth command on the interface to be changed.
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12-10-2018
06:15 AM
The ASR1006 supports the ESP20, but you should not have a mismatch in your router, they both should be ESP10 or ESP20.
... View more
04-12-2018
06:11 AM
Are those devices directly connected? Having BFD for OSPF will not necessarily make it switchover to the backup peer (As the targeted LDP is a TCP session between the peers, so it would try to take any new route to that destination and maintain the session up). I am thinking you can make LDP session shorter maybe? mpls ldp holdtime XXX
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04-11-2018
02:45 PM
I am not sure I understand all of your requirements, but it seems that implementing MPLS on your network is the way to go. You would use OSPF/ISIS on your global table, your customers could use L3VPN for their routing.
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04-11-2018
02:42 PM
If I understand correctly you want to pass a VLAN through MPLS? Both sides with servers in purple are on the same VLAN? If that's what you want you will need a technology called L2VPN. I am not sure if that would work on packet tracer though (but it seems packet tracer was used just to show the diagram).
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04-11-2018
02:37 PM
I am not 100% sure about this, but I guess it makes sense as the LFIB that you are checking is listed from the RP/RSP whereas the CEF adjacency comes from the LC. I am not sure if there is a way you can compare IOS / IOS XR for this as they are pretty different softwares.
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04-11-2018
02:18 PM
I can see those images there, check if those links work. 3750 https://software.cisco.com/download/type.html?mdfid=283831707&flowid=25963 3850 3.8.6E is not available here, but 3.6.8E is https://software.cisco.com/download/type.html?mdfid=284455433&flowid=37771
... View more
04-11-2018
02:14 PM
I would recommend you to move this post to XR session (service provider).
... View more
12-13-2018
If you have External routes you need to let the database know how to
access them, even though you ar...
12-13-2018
You are receiving a Type 4 LSA for that device. If you were to advertise
that router-id inside the O...
12-13-2018
Yes, if FHRP Isolation is configured it should show ACTIVE as they
should not be able to see the HSR...
12-13-2018
You do not need the IP used as the router-id / advertisement router to
be reachable. You can check i...
12-12-2018
That's a tough question on how fast you should monitor it, I guess the
answer would be as fast as yo...
12-12-2018
When you mentioned that the link fluctuates, what does it mean? Do you
actually lose the link? Does ...
12-12-2018
Hi Jatinder, The branch sites are also testing the links through their
BRs using Smart Probes. The d...
Created by
Renan Abreu
in Data Center Switches
12-10-2018
12-10-2018
If you are seeing that interface without PIM being used for RPF, then
absolutely, that's your bug.
Created by
Renan Abreu
in Data Center Switches
12-10-2018
12-10-2018
I am sorry, but it is still not clear to me. If I understood correctly,
you mentioned that you had E...
12-10-2018
It depends on how you have your QoS configured. If you used percentage
on all of your classes, I wou...
Created by
Renan Abreu
in Data Center Switches
12-10-2018
12-10-2018
Hi Moments, Not sure I understood the question, you did provide a bug ID
and then asked if that is a...
12-10-2018
Table-map is manipulating what goes into your RIB, for inter-area
filtering you could use the "area ...
12-10-2018
The ASR1006 supports the ESP20, but you should not have a mismatch in
your router, they both should ...
04-12-2018
Are those devices directly connected? Having BFD for OSPF will not
necessarily make it switchover to...
Public Statistics
| Date Registered | 12-20-2012 07:06 AM |
| Date Last Visited | 08-15-2019 11:36 PM |
| Total Messages Posted | 139 |
| Total Helpful Votes Received | 61 |
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