Re: [c-nsp] IS-IS as PE-CE protocol

ble/disable this feature in IS-IS ? That would be the easiest way to check if the implementation supports it. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN 2:5005/49@fidonet http://vas.tomsk.ru/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.

Re: [c-nsp] IS-IS as PE-CE protocol

stant customers > and non managed CPEs ... But as others already said all biggest SPs which > are still offering L3VPNs are only doing BGP and static. Still, the answer to my initial and direct question about IS-IS is... "yes" or "no"? -- Victor Sudakov, VAS4-RIPE

Re: [c-nsp] IS-IS as PE-CE protocol

ot my immediate competitor, so I'll advise you not to run an IGP > with a customer. Again, it seems a common practice to run an IGP with a customer to import the customer's routes into the provider's MPLS network. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN 2:5005/49@fidonet http://vas.tomsk.ru/

Re: [c-nsp] IS-IS as PE-CE protocol

Nick Cutting wrote: > But I think the discussion is not the CE-PE IGP relationship that gets > put into a L3VPN, then tunneled via MPLS, but connecting the CE to his > internal IS-IS No, it is not. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN 2:5005/49@fidonet http://vas

Re: [c-nsp] IS-IS as PE-CE protocol

omer network is all IS-IS ? What would be "not shooting myself in the foot" in this case? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN 2:5005/49@fidonet http://vas.tomsk.ru/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether

[c-nsp] IS-IS as PE-CE protocol

Dear Colleagues, OSPF as a PE-CE protocol has some useful features: the "DN bit" for loop prevention and sham links for route optimization. Does IS-IS have similar features? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN 2:5005/49@fidonet http://va

Re: [c-nsp] One PE router, one customer, several sites

-x-wifi goes into VRF mpls-300, > - NET customer-x-guest goes into VRF mpls-301, > - NET customer-x-administration goes into VRF mpls-302, > And so forth. > Christoffer, If a customer has several separate sites each with Wifi, for example, will all these Wifi NETs go into the same VRF

[c-nsp] One PE router, one customer, several sites

VRF and set up route import/export between the VRFs. Thanks in advance for any input. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN AS43859 ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive

Re: [c-nsp] Output Drops Due to QoS and threshold size

Saku Ytti wrote: > On 6 April 2016 at 20:09, Victor Sudakov <v...@mpeks.tomsk.su> wrote: > > > Why is it *not* the default configuration? > > I don't know why the defaults are so broken, small cats are worse with > mls qos enabled than without. And the common wisdom i

Re: [c-nsp] Output Drops Due to QoS and threshold size

config)#mls qos queue-set output 1 threshold 2 1000 1000 50 1000 Switch(config)#mls qos queue-set output 1 threshold 3 1000 1000 50 1000 Switch(config)#mls qos queue-set output 1 threshold 4 1000 1000 50 1000 Why is it *not* the default configuration? -- Victor Suda

[c-nsp] Output Drops Due to QoS and threshold size

. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/

Re: [c-nsp] MPLS and links with limited MTU size

Nick Hilliard wrote: > Victor Sudakov wrote: > > Is there any way those links can be put to any good use in the MPLS > > network? > > no. They're basically useless for an mpls provider network. I was thinking perhaps about some tunneling technology, like maybe MPLS over

Re: [c-nsp] MPLS and links with limited MTU size

twork, I should be fine. The question is, I don't want to fragment the customers' packets all the time. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailma

Re: [c-nsp] MPLS and links with limited MTU size

me routers we don't have control over them). -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/

[c-nsp] MPLS and links with limited MTU size

for any input. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/

Re: [c-nsp] Advanced use of mrtg

eel quite reluctant to install it. mrtg is tiny compared to that. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archiv

Re: [c-nsp] Advanced use of mrtg

hen you of course don't care if a score of extra packages are automatically installed for you (which is the case with my FreeBSD desktop, but still not with the servers). -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-n

Re: [c-nsp] Advanced use of mrtg

: 2.44.1_2 gettext-runtime: 0.19.6 perl5: 5.20.3_8 icu: 55.1 graphite2: 1.3.3 php5-snmp: 5.4.45 net-snmp: 5.7.3_11 The process will require 259 MiB more space. 47 MiB to be downloaded. # -- Victor Sudakov, VAS4-RIP

[c-nsp] Advanced use of mrtg

Colleagues, Does anybody have an --if-template for mrtg's cfgmaker to monitor interface discards and errors instead of traffic counters? Could you please share it? Thanks a lot in advance. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru

Re: [c-nsp] Advanced use of mrtg

h a template from someone who has used it him/herself. But thank you anyway, you have confirmed that it's perhaps the only available example and nobody cares to keep it up to date. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru

Re: [c-nsp] Many "Total output drops", no congestion

om/2015/02/13/investigating-micro-bursting/ > http://notalwaysthenetwork.com/2014/01/06/microburst-detection-with-wireshark/ Thank you, Luke, very useful. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing l

[c-nsp] Many "Total output drops", no congestion

interface GigabitEthernet0/2 description V-Node S Port 4 BPTOiK switchport trunk encapsulation isl switchport mode trunk power inline never srr-queue bandwidth shape 0 0 0 0 mls qos trust cos ! Thank you very much in advance for shedding light on this. -- Victor Sudakov, VAS4-RIPE,

Re: [c-nsp] Many "Total output drops", no congestion

would be really interested to know what is causing them. In the Wireshark analysis I have done so far, I see mostly steady WSUS HTTP traffic in the dump. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cis

Re: [c-nsp] %NTP: Multicast peer 224.0.1.1 does not exist

Juergen Marenda wrote: It's c7200p-advipservicesk9-mz.124-24.T8.bin Have you checked that the clock of your NPE-G2/7201 is in sync, It was the first thing I did. # sh ntp status # sh ntp asso without having an accurate time, it will not send any ntp time-info -- Victor Sudakov

Re: [c-nsp] %NTP: Multicast peer 224.0.1.1 does not exist

, not being able to provide time to others, etc. - and on 1900s with 15.2(4)M6a (NTP ACLs not working at all) - so the All And Improved New NTP Code seems to have quite a number of warts left... It's c7200p-advipservicesk9-mz.124-24.T8.bin -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda

Re: [c-nsp] %NTP: Multicast peer 224.0.1.1 does not exist

# gw2(config)#interface GigabitEthernet0/2 gw2(config-if)#ntp broadcast key 3 %NTP: Cannot reconfigure the broadcast peer. gw2(config-if)# What gives? And what's this Cannot reconfigure the peer stuff? Thanks a lot for any input. Victor Sudakov wrote: Colleagues, A 7206VXR (NPE-G2

Re: [c-nsp] %NTP: Multicast peer 224.0.1.1 does not exist

Yes, it is (sparse-dense-mode). But how is PIM related to broadcast NTP? Jared Mauch wrote: Is pim enabled on the interface? On Aug 21, 2015, at 3:39 AM, Victor Sudakov v...@mpeks.tomsk.su wrote: Colleagues, A 7206VXR (NPE-G2) is not sending ntp broadcasts nor multicasts, and I

[c-nsp] %NTP: Multicast peer 224.0.1.1 does not exist

. gw2(config-if)# -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/

Re: [c-nsp] How can I increase Ethernet MTU?

Victor Sudakov wrote: There is one more point. Some switches are connected via communications equipment (e.g. iPASOLINK radio relay) rather than directly. Those switches' GigabitEthernet ports are running in the 100Mb/s mode because the iPASOLINK equipment has FastEthernet ports

Re: [c-nsp] How can I increase Ethernet MTU?

than 1500 supported in 100Mb/s mode on Cisco? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http

Re: [c-nsp] How can I increase Ethernet MTU?

the default, I hope this will not change if I change the system mtu jumbo? Guess it's time for a lab. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net

Re: [c-nsp] How can I increase Ethernet MTU?

on a switch, and it won't have any affect on running traffic. But after a reboot with a new system mtu jumbo, what adverse effects can I expect if there is a jumbo MTU switch among switches with the default MTU? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru

Re: [c-nsp] How can I increase Ethernet MTU?

? What if I set system mtu jumbo 9198 on a random switch in the middle of the network, would it disrupt connectivity (STP or OSPF in the management VLAN or anything else)? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp

[c-nsp] How can I increase Ethernet MTU?

frames with MTU=1600, if possible, without disrupting the service? I will be grateful for a link to some good howto. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https

Re: [c-nsp] Cursed IP address

Daniel Roesen wrote: On Sat, Nov 29, 2014 at 09:41:45PM +0600, Victor Sudakov wrote: We have set up port monitor sessions in various parts of the network and have found out the following. One of the C3560X-24P in the chain of identical switches does not let through packets with src

Re: [c-nsp] Cursed IP address

=224.0.0.5. Neither when such packets transit the switch nor when it's configured on one of it's own Vlan interfaces. Other switches in the chain are identical from the hardware/software point of view, and configured almost identically, but do not suffer from the problem. -- Victor Sudakov, VAS4

Re: [c-nsp] Cursed IP address

:21:08.745: OSPF: End of hello processing -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net

Re: [c-nsp] Cursed IP address

, like filtering out LLDP or STP frames, but no such filters are even configured. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco

Re: [c-nsp] Cursed IP address

0x8030 0x00CEDF 0 172.16.210.010.65.127.7 677 0x8030 0x00E926 0 -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco

Re: [c-nsp] Cursed IP address

a message like %OSPF-4-DUP_RTRID, and I have not seen this message in the logs. So am I not absolutely positively sure, but I am pretty sure. And I have posted a show ip ospf database output in another message. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru

Re: [c-nsp] Cursed IP address

? What's wrong with 10.65.127.246 being an OSPF router ID? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http

Re: [c-nsp] Cursed IP address

. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/

Re: [c-nsp] Cursed IP address

/removed without resetting the database by doing a 'clear ip ospf ...' or just rebooting the router. We have even recreated the problem in a separate VRF, created as a testbed specifically for the purpose. The problem is 100% reproducible. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN

Re: [c-nsp] Cursed IP address

as a testbed specifically for the purpose. The problem is 100% reproducible. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp

Re: [c-nsp] Cursed IP address

with neighbor 10.65.127.241 (Designated Router) Adjacent with neighbor 10.65.127.242 (Backup Designated Router) Suppress hello for 0 neighbor(s) -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco

Re: [c-nsp] Cursed IP address

packets with this particular src addr. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail

[c-nsp] Cursed IP address

length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 1 Last flood scan time is 0 msec, maximum is 0 msec Neighbor Count is 15, Adjacent neighbor count is 1 Adjacent with neighbor 10.65.127.9 (Designated Router) Suppress hello for 0 neighbor(s) -- Victor Sudakov, VAS4

Re: [c-nsp] Galvanic isolation for Ethernet?

run. There is some industrial equipment in the vicinity. That's why we had installed Ethernet protection (which proved ineffective this time). -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp

Re: [c-nsp] Galvanic isolation for Ethernet?

get toasted switches every day and not twice a year). -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http

Re: [c-nsp] Galvanic isolation for Ethernet?

by terminating/not terminating them? And thank you a lot for your input. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive

Re: [c-nsp] Galvanic isolation for Ethernet?

Roland Dobbins wrote: On Aug 18, 2014, at 8:07 PM, Victor Sudakov v...@mpeks.tomsk.su wrote: Some devices cannot be grounded. I know you don't want to hear this, but if that's the case, they should be immediately decommissioned as a safety hazard. You must be kidding. Whoever grounds

Re: [c-nsp] Galvanic isolation for Ethernet?

are interconnected and that they measure the parameters annually. I am not the person to expose them to be lying (if they really are), I lack such qualification. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing

Re: [c-nsp] Galvanic isolation for Ethernet?

at http://www.zelax.ru/products/sfp-racks-cables/line-protection-uz-m#tabs|product:description and consult with Zelax's sales. Sorry guys, it is in russian. We work a lot with Zelax, I will talk to them, thank you for the idea. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda

Re: [c-nsp] Galvanic isolation for Ethernet?

the grounding circuits are interconnected and they measure their parameters annually. I lack the necessary qualification to call them liars (even if they are lying which I doubt). -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru

[c-nsp] Galvanic isolation for Ethernet?

advice is appreciated. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/

Re: [c-nsp] Galvanic isolation for Ethernet?

between buildings (but never exceeds 100m). Some devices can be grounded, some not. We thought that APC ProtectNet or similar surge protectors would be sufficient, but they don't seem to be. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru

Re: [c-nsp] Galvanic isolation for Ethernet?

point than the switch itself can be worse than not grounding at all. After all, surge and ESD protection devices for Ethernet are on the market for a reason. It seems even a big market, all I ask you is to recommend a device. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru

Re: [c-nsp] Galvanic isolation for Ethernet?

as I do have some annoying (and expensive) corner cases that they might be useful for) -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman

Re: [c-nsp] Galvanic isolation for Ethernet?

switch died is remote and normally unmanned. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net

Re: [c-nsp] Galvanic isolation for Ethernet?

). -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/

Re: [c-nsp] Galvanic isolation for Ethernet?

could prove quicker and cheaper than rebuilding the grounding system(s). -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive

Re: [c-nsp] Galvanic isolation for Ethernet?

protection devices and cameras, and an occasional data collection PC scattered on the premises. Some of them are outside and may even go as far as the gates or fence or whatever. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco

Re: [c-nsp] Galvanic isolation for Ethernet?

equipped with fiber ports)? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/

[c-nsp] UDLD enabling port prematurely?

a BPDU does, there will be a storm and a lot of MAC flapping. Is there a way to keep the port from forwarding traffic until the UDLD state is Bidirectional ? Thanks a lot for any input. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru

Re: [c-nsp] UDLD enabling port prematurely?

difference? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/

Re: [c-nsp] UDLD enabling port prematurely?

Saku Ytti wrote: I guess if it's ethernet link over some radio or something, where autenego isn't end-to-end, it might plausibly be useful, That is my case (an Ethernet link over several E1 links). -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru

Re: [c-nsp] UDLD enabling port prematurely?

/ learning / forwarding state -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/

Re: [c-nsp] UDLD enabling port prematurely?

without link poisoning. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/

Re: [c-nsp] Divide large PVST domain?

/catalyst3550/software/release/12-2_25_see/configuration/guide/swflink.html But this won't protect from occasional loops introduced e.g. by a technician. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp

Re: [c-nsp] Divide large PVST domain?

for ahead of time to mitigate what you stated here. ie, assign vlans by odd / even grouping for 2 mst regions (or more mst regions if desired by some other preferred method). Great, thanks. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru

Re: [c-nsp] Divide large PVST domain?

you could also not run STP - no ring/redundant link = no loop. As I have already said before, 'I have a train topology with some redundant links between neighboring switches'. There are however no rings in the sense that redundant links are only between neighbors. -- Victor Sudakov, VAS4

[c-nsp] Divide large PVST domain?

going for MST instead of PVST? Thanks in advance for any input. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive

Re: [c-nsp] Divide large PVST domain?

into a single region; it is not advantageous to segment a network into separate regions I wonder if MST has any limits on the network diameter. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp

Re: [c-nsp] Divide large PVST domain?

built along a pipeline. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/

Re: [c-nsp] Divide large PVST domain?

redundant links between neighboring switches. I have also considered FlexLinks but came to the conclusion that STP was safer. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https

Re: [c-nsp] Divide large PVST domain?

between neighboring switches, STP is always a good precaution against someone (a technician) accidentally connecting two ports together. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp

Re: [c-nsp] Divide large PVST domain?

Dale W. Carder wrote: You could deploy rapid spanning tree. It does not care about diameter, instead the max-age effectively defines your upper bound. That's good news. Does MST also not care about diameter, its IST instance being in fact an RSTP instance? -- Victor Sudakov, VAS4-RIPE

Re: [c-nsp] Divide large PVST domain?

convenient on L2. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/

Re: [c-nsp] NTP message sent to 224.0.1.1, from interface 'NULL' (0.0.0.0).

lines did help. However, when I apply the following command to the interface: interface GigabitEthernet0/0 ntp multicast ttl 1 the routers again begins sending multicast NTP packets with ttl=28. What gives? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru

Re: [c-nsp] NTP message sent to 224.0.1.1, from interface 'NULL' (0.0.0.0).

was doing something wrong, maybe did not read some what's new note. This ntp multicast ttl 1 has worked for me for years, I have some Unix hosts configured as multicastclients. Now I'll have to change them into broadcastclients. Not a big deal, but the surprise was unpleasant. -- Victor Sudakov

[c-nsp] NTP message sent to 224.0.1.1, from interface 'NULL' (0.0.0.0).

10.14.128.255 ntp broadcast end -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/

Re: [c-nsp] NTP message sent to 224.0.1.1, from interface 'NULL' (0.0.0.0).

broadcast sends the messages using multicast, to 224.0.1.1. See RFC5905. Phil On 7/2/13 6:09 AM, Victor Sudakov v...@mpeks.tomsk.su wrote: Colleagues, Why is a CISCO3945 router sending multicast NTP packets with ttl=31 (!) while I have never configured it to do so? debug ntp

Re: [c-nsp] NTP message sent to 224.0.1.1, from interface 'NULL' (0.0.0.0).

message sent to 224.0.1.1, from interface 'NULL' (0.0.0.0). orlov# -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive

[c-nsp] Finding the root bridge

No 35 e4d3.f1cc.f280 4403.a7c9.a780 sw-sem sw-bptoik# So sw-sem is the root brigde. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net

Re: [c-nsp] Default CoS

. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/

[c-nsp] Default CoS

of DSCP in STP frames. Where can I read what else is marked by default and how? Thanks in advance for any input. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https

[c-nsp] VTP Pruning and VTPv3

manually enable pruning on each switch in the domain. Any other issues? TIA for any input. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman

Re: [c-nsp] L2 car/policing on C3560X (IOS 15.0(1)SE3, ip services licence)

interface would be. Could you advice a good white paper on QoS on L3 switches? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp

[c-nsp] L2 car/policing on C3560X (IOS 15.0(1)SE3, ip services licence)

/4 GigabitEthernet0/4 Service-policy input: ITSO Class-map: class-default (match-any) 0 packets, 0 bytes 5 minute offered rate 0 bps, drop rate 0 bps Match: any sw-parabel# -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru

Re: [c-nsp] VTP and shared medium

reconfigured PASOLINK from a shared medium to point-to-point links between switches. It was a rather desperate solution because any failed switch will now break the connectivity to other switches behind it. But the DTP/VTP problems have disappeared. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN

Re: [c-nsp] VTP and shared medium

the following be possible? Switchport: Enabled Administrative Mode: trunk Operational Mode: static access And second question. If one port is in trunk mode and the other in access mode, shouldn't the untagged native Vlan1 traffic still flow as normal? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda

Re: [c-nsp] VTP and shared medium

Trunking Encapsulation: native Negotiation of Trunking: On Access Mode VLAN: 1 (default) Why is the port in static access mode while it is configured as switchport mode trunk and has the administrative mode trunk? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru

Re: [c-nsp] router does not see IGMP joins

in the router configuration) have solved the problem? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http

Re: [c-nsp] router does not see IGMP joins

Victor Sudakov wrote: What could be the reason that a Cisco 1841 router (IOS 12.4(13r)T) does not see IGMP joins to a particular group? tcpdump shows that the joins are being sent to the network, however debug ip igmp 224.0.1.3 does not show them. It seems that the problem disappeared after

Re: [c-nsp] IPSEC + TFTP don't work

configuration - so it sends 512 byte chunks even though PXE demands 1500. Kevin, Thank you for the info. What tftpd do you recommend to override the block size requests? I use tftpd from the FreeBSD base system, it cannot do that. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda

Re: [c-nsp] router does not see IGMP joins

Jarrod Raines wrote: what's the source IP of the device sending the join?  maybe an RPF issue? The address of its LAN interface. Nothing special about it. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing

[c-nsp] Embedded hash not found

because the result of verify /md5 matches with that published on CCO for this image. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco

[c-nsp] IPSEC + TFTP don't work

NIC nor a GPXE emulation work. Is this some known issue? Thanks in advance for any input. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman

Re: [c-nsp] IPSEC + TFTP don't work

$protected_net -mtu 1300 $ipsec_gateway on the TFTP server and it did not help. I think the TFTP server just sends its packets as requested by the client and does not care if the MTU is small. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru

Re: [c-nsp] IPSEC + TFTP don't work

BCM5709C NetXtreme II GigE, perhaps it has an advanced IP stack. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:suda...@sibptus.tomsk.ru ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive

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