Konstantin Dunaev

Member Since: Oct 16, 2005

English
Konstantin Dunaev commented on XRv 5.1.1 - Working/non working features and roadmap in XR OS and Platforms 2 years ago

Hi, I was installed the XRv just a couple of days ago, and would like to report, that I couldn't...

Konstantin Dunaev commented on Can anybody finaly explain "system mtu routing" for c3560? in LAN, Switching and Routing 2 years ago

Hi Andre,thanks for the feedback!I'm not 100% sure right now why in my case Layer3 ports (no switch...

Konstantin Dunaev commented on IPv6 IPv4 network interconnection, NAT-PT (v4-mapped) in IPv6 Integration and Transition 4 years ago

look this link:http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6553/white_paper_c11-...

Konstantin Dunaev commented on Problem with ISDN on c2600. in Remote Access 4 years ago

Hi,thank you for the info, I've tried different things but without  result. The funny thing is...

Konstantin Dunaev commented on Problem with ISDN on c2600. in Remote Access 4 years ago

Hi  Zoltan,with power saving would be all OK, but how can end-device use then the ISDN line if it...

Konstantin Dunaev commented on MPLS/VPN route leak configuration between VRFs in MPLS 4 years ago

Hi Ivan,thank you for the update and links, I'll study them.Do you mean the problem in my...

Konstantin Dunaev commented on MPLS/VPN route leak configuration between VRFs in MPLS 4 years ago

Hi again,just to clear the things:Is it true that "export-map" works only for prefixes which are...

Konstantin Dunaev commented on Problem with ISDN on c2600. in Remote Access 4 years ago

Hi Leo,I don't really believe that grounding can cause such a strange behavior, but we can try. ...

Konstantin Dunaev commented on Problem with ISDN on c2600. in Remote Access 4 years ago

Hi Paolo,I've updated the IOS to  c2600-entservicesk9-mz.124-15.T14.bin but the problem is exactly...

Konstantin Dunaev commented on Problem with ISDN on c2600. in Remote Access 4 years ago

Hi Paolo,thank you for the update. We have some other ISDN line but they stays the hole time active...

Konstantin Dunaev commented on OSPF metric in inter-area routing in WAN, Routing and Switching 4 years ago

Hi Kishore ,thank you for the reply. Idon't think the GRE tunnel is a good option - the problems...

Konstantin Dunaev commented on OSPF metric in inter-area routing in WAN, Routing and Switching 4 years ago

Hi Kishore, I've update the topology. the preferd way to 10.62.10/24 from PE-69 is PE-69 --> P-...

Konstantin Dunaev commented on 7606 Router cpu utilization is hitting 99%! in WAN, Routing and Switching 4 years ago

please don't forget to post here a solution

Konstantin Dunaev commented on Frag on xdsl router with PPPoA for a 1500 Bytes Paquet in WAN, Routing and Switching 4 years ago

you should activate it on you end-PC, not on the router,  with this option PC will find out the...

Konstantin Dunaev commented on 7606 Router cpu utilization is hitting 99%! in WAN, Routing and Switching 4 years ago

"sh ibc" shows that you you have ~250Mbit egress and ~50 Mbit ingress traffic processed by CPU. Now...

Konstantin Dunaev commented on 7606 Router cpu utilization is hitting 99%! in WAN, Routing and Switching 4 years ago

could you also  take the ouput from: sh ibc shows the statistics of CPU processed packets sh mls...

Konstantin Dunaev commented on Frag on xdsl router with PPPoA for a 1500 Bytes Paquet in WAN, Routing and Switching 4 years ago

try to activate "Path discavery protocol" and you end station and see what value it find on the way...

Konstantin Dunaev commented on Frag on xdsl router with PPPoA for a 1500 Bytes Paquet in WAN, Routing and Switching 4 years ago

Hi, I'm quite sure that on provider site the MTU is smaller 1500, because in other case Provider...

Konstantin Dunaev commented on Collapsed core -> Traditional in WAN, Routing and Switching 4 years ago

Hi, just a few comments, as I was considering a couple years ago also to get ASR1000 or c6500/7600:...

Konstantin Dunaev commented on Acceptable CPU level for 7200 in WAN, Routing and Switching 4 years ago

we don't use any IPSec staff on our NPE-G1 but with full-BGP table, Netflow, MPLS, OSPF and traffic...

Konstantin Dunaev commented on 7200 NPE-G1 Built -in GE interface LLQ Problem in WAN, Routing and Switching 4 years ago

I can imagine that your subif GigabitEthernet0/2.1500 had earlier  a different configuration, then...

Konstantin Dunaev commented on strange BGP problem - CPU and BGP updates in WAN, Routing and Switching 4 years ago

Hi Kishore,thank you for advise, on most BGP session I've removed it already.but our problem was a...

Konstantin Dunaev commented on dialer if problem in WAN, Routing and Switching 4 years ago

do you use RADIUS authentication server? what does it say in log?activate additional debaug "ppp...

Konstantin Dunaev commented on BGP takes too much CPU in WAN, Routing and Switching 4 years ago

Hello,if somebody still interested in, we've found the problem - it was BGP related "bugs" on ...

Konstantin Dunaev commented on strange BGP problem - CPU and BGP updates in WAN, Routing and Switching 4 years ago

Hello,if somebody still interested in, we've found the problem - it was BGP related "bugs" on ...

Konstantin Dunaev commented on Collapsed core -> Traditional in WAN, Routing and Switching 4 years ago

if you want to be more flexible about WAN interfaces then 7600 is a better. But 7600/6500 both use...

Konstantin Dunaev commented on Collapsed core -> Traditional in WAN, Routing and Switching 4 years ago

in your case to put c6500 in aggregation level and use them as P/PE router seems to be reasonable...

Konstantin Dunaev commented on 7200 NPE-G1 Built -in GE interface LLQ Problem in WAN, Routing and Switching 4 years ago

please show the running configuration for the main interface and a subif.

Konstantin Dunaev commented on Collapsed core -> Traditional in WAN, Routing and Switching 4 years ago

We don't use VRF-lite exactly because of those reasons you've outlined.In our case, we place in a...

Konstantin Dunaev commented on OSPFand BGP on same router in WAN, Routing and Switching 4 years ago

please post the "show ip route" for both /24 and /29 prefixes.how do you configure the loopback? Do...

Konstantin Dunaev commented on OSPFand BGP on same router in WAN, Routing and Switching 4 years ago

Hello,considering,  you have configured "ip classless" routing (meantime is default) then the...

Konstantin Dunaev commented on WAN link testing: ttcp ? in WAN, Routing and Switching 4 years ago

just to info, on a c7200 NPE-G1 I could reach with TTCP about 30-40 mbits/s but CPU was 100%...

Konstantin Dunaev commented on WAN link testing: ttcp ? in WAN, Routing and Switching 4 years ago

yes, sure in CEFswitching on the forwarding path, but TTCP doesn't use CEF, it's a CPU based...

Konstantin Dunaev commented on Collapsed core -> Traditional in WAN, Routing and Switching 4 years ago

Hello, it sounds like we have a similar topology But we built a little bit different:- each PoP has...

Konstantin Dunaev commented on WAN link testing: ttcp ? in WAN, Routing and Switching 4 years ago

try to repeat the test with  a tool  "iperf" on one of servers, if it's possible.But cisco 2821 can...

Konstantin Dunaev commented on Users cannot SSH to servers in WAN, Routing and Switching 4 years ago

if you can't ping or trace the server, it could be the folowing problems:1. check the IP address...

Konstantin Dunaev commented on WAN link testing: ttcp ? in WAN, Routing and Switching 4 years ago

don't forget that TTCP uses the routers CPU which is normally quite slow, if your router has some...

Konstantin Dunaev commented on Users cannot SSH to servers in WAN, Routing and Switching 4 years ago

first of all you should check the path with ping and trace command. if both work then probably the...

Konstantin Dunaev commented on Understanding Backplane/Throughput/Capacity in WAN, Routing and Switching 4 years ago

check these two links:http://www.cisco.com/web/partners/downloads/765/tools/quickreference/...

Konstantin Dunaev commented on Understanding Backplane/Throughput/Capacity in WAN, Routing and Switching 4 years ago

Hello,keep in mind the following idea : - L3 switches can forward the traffic in hardware and the...

Konstantin Dunaev commented on 7606 Router cpu utilization is hitting 99%! in WAN, Routing and Switching 4 years ago

but if I correctly undestand, the traffic is not processed by CPU on 720's, CPU processes only a...

Konstantin Dunaev commented on 7606 Router cpu utilization is hitting 99%! in WAN, Routing and Switching 4 years ago

Hello, if you router has turned  into "processed-switched" mode you can see it if you try those...

Konstantin Dunaev commented on BGP Route Dampening.....confused??? in WAN, Routing and Switching 4 years ago

Hello,according to the latest RIPE  recomendadion https://www.ripe.net/ripe/docs/ripe-378the BGP...

Konstantin Dunaev commented on how to understand "sh ip bgp summary" output in WAN, Routing and Switching 4 years ago

Hi Leo,exactly, after IOS update (SB21) the strange "BGP Path" grow is not there any more and CPU...

Konstantin Dunaev commented on how to understand "sh ip bgp summary" output in WAN, Routing and Switching 4 years ago

ups, I've ocassionaly voted, never mind. with IOS version for NPE-G2 is something strange,  the...

Konstantin Dunaev commented on influencing BGP attributes within MPLS network in MPLS 4 years ago

Hi Manoj,are those PE's router under your controll? are there only 4 routers? How PE routers are...

Konstantin Dunaev commented on influencing BGP attributes within MPLS network in MPLS 5 years ago

may be I'm mistaken, but I don't really see any TE configuration in your config, the traffic follow...

Konstantin Dunaev commented on influencing BGP attributes within MPLS network in MPLS 5 years ago

could you please post it here without a zip file? or at least attach only a test file without zip-...

Konstantin Dunaev commented on additional iBGP session between two route-reflectors client? in WAN, Routing and Switching 5 years ago

Hi Folks!thank you all again for the comments and inputs!currently  I've set an additionly iBGP...

Konstantin Dunaev commented on BGP route-reflectors and MPLS - suboptimal path. in MPLS 5 years ago

Hi Folks!thank you all again for the comments and inputs!currently I've set an additionly iBGP...

Bio

more then 10 years Cisco network experience.










Konstantin Dunaev's Stats

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Discussion started 57
Answers marked as Correct 21
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Content Rated 37