The only thing that sometimes scary me is.. If this routers receive some type of DoS....
-- Michel Perez Skype: michelmbperez [email protected] http://br.linkedin.com/in/michelmbperez 2014-05-27 18:56 GMT-03:00 Bob McCouch <[email protected]>: > You're fine. Here's data from a production 1941 I have running full tables > against 2 ISPs: > > EXAMPLERT#show ver > Cisco IOS Software, C1900 Software (C1900-UNIVERSALK9-M), Version > 15.2(4)M5, RELEASE SOFTWARE (fc2) > ROM: System Bootstrap, Version 15.0(1r)M16, RELEASE SOFTWARE (fc1) > > EXAMPLERT uptime is 29 weeks, 1 day, 1 hour, 19 minutes > System returned to ROM by power-on > System restarted at 15:30:10 EST Mon Nov 4 2013 > System image file is "flash0:c1900-universalk9-mz.SPA.152-4.M5.bin" > Last reload type: Normal Reload > Last reload reason: power-on > > Cisco CISCO1941/K9 (revision 1.0) with 1540064K/32768K bytes of memory. > Processor board ID FGL1710267F > 2 Gigabit Ethernet interfaces > 1 terminal line > 1 Virtual Private Network (VPN) Module > DRAM configuration is 64 bits wide with parity disabled. > 255K bytes of non-volatile configuration memory. > 250880K bytes of ATA System CompactFlash 0 (Read/Write) > > > EXAMPLERT#show bgp sum > BGP router identifier 192.0.2.86, local AS number 99999 > BGP table version is 156905939, main routing table version 156905939 > 493792 network entries using 73081216 bytes of memory > 796816 path entries using 50996224 bytes of memory > 125165/76957 BGP path/bestpath attribute entries using 17022440 bytes of > memory > 111548 BGP AS-PATH entries using 3906496 bytes of memory > 53 BGP community entries using 1272 bytes of memory > 0 BGP route-map cache entries using 0 bytes of memory > 85 BGP filter-list cache entries using 1360 bytes of memory > BGP using 145009008 total bytes of memory > BGP activity 5030767/4536967 prefixes, 47981574/47184758 paths, scan > interval 60 secs > > Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down > State/PfxRcd > A.B.C.3 4 99999 24831954 53177412 156905939 0 0 29w0d > 303107 > 192.0.2.85 4 12345 14099722 189456 156905766 0 0 8w4d > 493708 > EXAMPLERT#show proc cpu his > > EXAMPLERT 05:52:06 PM Tuesday May 27 2014 EDT > > > > > 3333 3 > 555522222111111111166666111113333311111111111111111111111118 > 100 > 90 > 80 > 70 > 60 > 50 > 40 **** * > 30 **** * > 20 **** * > 10 **** ***** * > 0....5....1....1....2....2....3....3....4....4....5....5....6 > 0 5 0 5 0 5 0 5 0 5 0 > CPU% per second (last 60 seconds) > > > > > 323222221222212222122221222212222222221713322122222222122221 > 851411112111161211311117111251111212116534111831111311611115 > 100 > 90 > 80 * > 70 * > 60 * > 50 * > 40 * * > 30 *** * ** > 20 ******** ********* ********************* ******************* > 10 ***************************************#**************#***** > 0....5....1....1....2....2....3....3....4....4....5....5....6 > 0 5 0 5 0 5 0 5 0 5 0 > CPU% per minute (last 60 minutes) > * = maximum CPU% # = average CPU% > > > > > > > > > 775445444644556544344454444444444444444444454544444444544444444445566767 > > 567621787587282193971410497327888444901589347389489043455066847752745797 > 100 > > 90 > > 80 ** > * * > 70 ** * > **** > 60 *** * ** > ****** > 50 **** ************ * * ** **** * *** ***** ** *** *** > ********** > 40 > ************************************************************************ > 30 > ************************************************************************ > 20 > ************************************************************************ > 10 > ************************************************************************ > > 0....5....1....1....2....2....3....3....4....4....5....5....6....6....7.. > 0 5 0 5 0 5 0 5 0 5 0 5 > 0 > CPU% per hour (last 72 hours) > * = maximum CPU% # = average CPU% > > > EXAMPLERT#show mem > Head Total(b) Used(b) Free(b) Lowest(b) > Largest(b) > Processor 293BEE80 1422102912 515694856 906408056 900406788 > 842952540 > I/O E000000 33554432 17432604 16121828 15865264 > 13769932 > > > > EXAMPLERT#show ip ro sum > IP routing table name is default (0x0) > IP routing table maximum-paths is 32 > Route Source Networks Subnets Replicates Overhead Memory > (bytes) > connected 0 12 0 720 2160 > static 0 7 0 840 1260 > bgp 99999 164566 329227 0 29627580 88882740 > External: 352814 Internal: 140979 Local: 0 > internal 5797 20287420 > Total 170363 329246 0 29629140 109173580 > > > On Tue, May 27, 2014 at 5:46 PM, Ryan Jensen <[email protected]> wrote: > > > Hi All, > > I'm about to bring up peerings with two ISPs. Today, I have two peerings > > with 1 ISP, only sending me 1 default route. > > I'm dropping a circuit and bringing in another ISP circuit. I have a > > requirement to load-balance across the two circuits, hence the need for > > full tables. Let BGP do its thing and pick the best path to the > > destination. > > > > Question: > > I have a pair of 2921, one on each circuit, each with maxed 2.5gb Ram. > > Am I crazy to think these routers will handle the full tables? My current > > ISP just told me we're looking at just a bit over 490k routes. > > _______________________________________________ > > Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: > > > > iPexpert on YouTube: www.youtube.com/ipexpertinc > > > _______________________________________________ > Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: > > iPexpert on YouTube: www.youtube.com/ipexpertinc > _______________________________________________ Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: iPexpert on YouTube: www.youtube.com/ipexpertinc
