Re: [c-nsp] smaller PI

2010-06-30 Thread tkapela
...And several shops filter on per-/8 RIR allocation min + maxes, too! Bassically, a /24 isn't a safe, global assumption, unless from swamp space and/or a RIR portion specifically created for micro-allocations. Take note of the cisco "isp ingress strcit" prefix list on the ftp site. Folks *are*

Re: [c-nsp] smaller PI

2010-06-30 Thread tkapela
Kinda OT for c-nsp, but I'll suggest: -get an ipv6 allocation today, and maybe one day it'll be useful -do not assume even /24 will be "uniquely reachable" in the DFZ, as this wasn't and isn't 100% true -if the point of the exercise is to get an end-user site multihomed, explore other non-PI a

Re: [c-nsp] [C7204VXR] %IDMGR-3-INVALID_ID: bad id in id_to_ptr(bad id) (id: 0x0)

2010-06-29 Thread tkapela
Best to lab this sort of thing up. You can test scale/radius/etc handling using "bulk" session generation from a *nix system, examples and info here: http://www.jacco2.dds.nl/networking/openswan-l2tp.html#L2TPoverview -Tk -Original Message- From: Youssef Bengelloun-Zahr Sender: cisco-n

Re: [c-nsp] PPPoE offered bandwidth

2010-06-25 Thread tkapela
Fwiw, tested an npe-225 (on 12.4t, 12.2SR, and others) and saw single-session tcp goodput at 90+ mbit, approx 55 to 60% cpu load (spent all towards cef + interrupts, as it should be). Anything higher end should do even better. -Tk -Original Message- From: "Paul Stewart" Sender: cisco-

Re: [c-nsp] How to find the root cause of packet loss

2010-06-18 Thread tkapela
Toss a pair of hosts, one at gig, one at faste, on the 2970 -- then run iperf -c -P 50 / -s on either host, and tell *us* what you see for discards out the slower of the two interfaces. If you've got the gear, it should seem that the best information might be from actual testing vs non-existent

Re: [c-nsp] H-VPLS BGP autodiscovery

2010-06-15 Thread tkapela
You will need to adjust igp cost so that your signaling/sourcing PE router issues/sends tldp via the sip-based interface towards the far-end vpls speakers' loopback address. It would seem that your device is picking a link that's lower cost (via the 10 gig card) which cannot allocate labels for

Re: [c-nsp] 7206 L2TP and Gigawords

2010-06-06 Thread tkapela
Phil, I've found 12.4(20)T to be reliable enough for LNS duty, and most notably a tad more dram efficient when considering bgp rib bloat compared to SR. Has what you mention there, and then some. Of course, SR will have bgp vpls addr-fam support, vpls inter-working, and a few other mpls knobs,

Re: [c-nsp] Redundant VPN w/ Cisco Routers

2010-05-29 Thread tkapela
+1 to KISS principal using virtual-template ints and statics, however next-hop reachability is somewhat obtuse unaided by gre keepalives or other end to end reachability determination. Also, +2 to DMVP (which is multipoint gre aided by nhrp) + some flavor of IGP on top. Everyone knows that one

Re: [c-nsp] 6509 MPLS Odd TDP issue

2010-05-26 Thread tkapela
Two words: logging anachronisms. It should be otherwise fine. Verify neighs are speaking/exchanging ldp helos with "sh mpls ldp disc" and "sh mpls ldp nei" -Tk -Original Message- From: Chris Lane Date: Wed, 26 May 2010 09:21:09 To: Subject: [c-nsp] 6509 MPLS Odd TDP issue All, I a

Re: [c-nsp] Cisco Switch Packet Buffering Matrix?

2010-05-24 Thread tkapela
Imho, one should not encourage this nonsense by signing any such NDA. Brocade, juniper, extreme, and others publish such data about their products right on their darn respective websites, and without demonstrable harm. Knowing if something has a shared+per-port limit vs per-port-asic vs per-port

[c-nsp] Soft-reconfig (Re: asr1k IOS-XE bgp route-map / crash)

2010-05-23 Thread tkapela
Speaking of, I had been wondering for some time where folks are using soft-reconfig inbound, vs relying on soft-refresh from neighbors. If anyone is using it, mind sharing where and motivates it? -Tk -Original Message- From: Brandon Applegate Date: Sun, 23 May 2010 14:07:25 To: Subje

Re: [c-nsp] Nexus 7k CoPP

2010-05-21 Thread tkapela
This list has extensive coverage of CoPP (how it works, examples, etc) for various platforms. I'd goodle up site: for a bit to see if that can satisfy your needs. Conceptually, CoPP works the same across platforms. Roland ;) will likely suggest iACL's (infrastructure) at strategic border/peer

Re: [c-nsp] Server Load Balancer - Cisco vs Brocade vs F5

2010-05-21 Thread tkapela
(Plug) ...You can't forget about gf-slb: http://www.nanog.org/meetings/nanog41/presentations/Kapela-lightning.pdf Some LB tasks are simply "perfect" workloads for ecmp and a few server boxes...also note IP SLA + tracked objects + IOS embeded event manager can do far more than I show in these sl

Re: [c-nsp] What does L2PT actually do on the wire?

2010-05-19 Thread tkapela
Afaik, L2PT is a port behavior, not a encaps type; it treats these (special ethertype frames) like other untagged frames arriving on an L2 port configured for 1q tunneling. Think of l2pt as "selective port ethertype ignoring." So, it doesn't change SA or DA of the frame, and something looking cl

Re: [c-nsp] GigE woes

2010-05-17 Thread tkapela
Tim, Assuming the Rx counters on your side(s) are all zeros, then we could move to consider perhaps their equipment has a layer 1.5 or PLCP issue -- failing to transport small and non-line-rate frames could be related to: -slightly broken Rx pll or ifg detection in their rx path; whereby it loc

Re: [c-nsp] VPN (hopefully quick) question... split vsnosplit tunnel

2010-05-14 Thread tkapela
+1 to policy route nexthop through loopback -- but this is route-map style, and kinda janky imho, compared to other options On IOS, I've become much more fond of tunnel-protection via virtual templates. Real virt-access cloned per ipsec endpoint (with or without gre, etc) is pure genius. I'd s