Thanks Nick - As mentioned, we have some ASR1Ks, with 4G ram(RP1s), that certainly didnt use this much with a base conf....thanks for the link.....it's looking like I might need to go to 8Gb to take a full table on the 4431.
Cheers ________________________________________ From: Nick Cutting <ncutt...@edgetg.com> Sent: Wednesday, 1 June 2016 10:52 PM To: CiscoNSP List; cisco-nsp@puck.nether.net Subject: RE: ISR4431 memory usage My 4431's command outputs look similar to yours - almost the same in fact, and I've got maybe 1k routes on these and a few vrfs I think it pre-allocates the RAM like Linux does. 2851 is vastly different architecture running plain IOS vs XE. I was under the impression that you needed 8 gigs of Ram for a full table on an XE device - the 44xx are similar to ASR1k - whereas the 43xx are more like classic ISRs. I think I read this older article here: https://supportforums.cisco.com/document/12202206/size-internet-global-routing-table-and-its-potential-side-effects -----Original Message----- From: cisco-nsp [mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of CiscoNSP List Sent: Tuesday, May 31, 2016 10:10 PM To: cisco-nsp@puck.nether.net Subject: [c-nsp] ISR4431 memory usage Hi Everyone, Purchased a couple of ISR4431's for a small POP, that has a single IPTransit service (Currently being handled by an old 2851, taking full table and default)....obviously full table not necessary, but we had a customer at this POP that wanted the full table advertised to them, so we needed to take it from the upstream. 2851 handles the full table no problems - only has 1Gb dram, and is using ~57% ram The 4431's we purchased to replace the 2851 have (default) 4Gb ram, and I was a little shocked when I turned them on to see that with virtually no config on them, they are already using ~83-84% of the ram: #show platform software status control-processor brief Load Average Slot Status 1-Min 5-Min 15-Min RP0 Healthy 0.00 0.00 0.00 Memory (kB) Slot Status Total Used (Pct) Free (Pct) Committed (Pct) RP0 Healthy 3972052 3317944 (84%) 654108 (16%) 1530296 (39%) sh platform resources **State Acronym: H - Healthy, W - Warning, C - Critical Resource Usage Max Warning Critical State ---------------------------------------------------------------------------------------------------- RP0 (ok, active) H Control Processor 5.81% 100% 90% 95% H DRAM 3240MB(83%) 3878MB 90% 95% H ESP0(ok, active) H QFP H DRAM 1609582KB(76%) 2097152KB 80% 90% H IRAM 0KB(0%) 0KB 80% 90% H ..and iosd looks to be the main user: #monitor platform software process rp active top - 09:59:58 up 7 days, 23:38, 0 users, load average: 0.00, 0.00, 0.00 Tasks: 380 total, 4 running, 376 sleeping, 0 stopped, 0 zombie Cpu(s): 0.7%us, 1.7%sy, 0.0%ni, 97.6%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 3972052k total, 3324360k used, 647692k free, 211736k buffers Swap: 0k total, 0k used, 0k free, 1705968k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 30505 root 20 0 9830m 161m 113m R 10 4.2 1226:27 fman_fp_image 23117 root 20 0 2205m 709m 341m S 3 18.3 258:15.06 linux_iosd-imag 20408 root 20 0 288m 73m 30m S 2 1.9 192:48.66 bsm 2142 root 20 0 72468 24m 18m S 1 0.6 69:33.01 iomd ...Now, my question is, can we "safely" take the full table on the 4431's...Ive had a read of the following: http://www.cisco.com/c/en/us/td/docs/routers/access/4400/troubleshooting/memorytroubleshooting/isr4000_mem.html And it mentions that iosd/memory allocation is allocated as "needed"...but Im not clear on whether the way the platform allocates memory, will allow us to take a full table with 4Gb ram.....Im really hoping it will, and we dont have to upgrade the ram on them? Cheers. [http://www.cisco.com/web/fw/i/logo-open-graph.gif]<http://www.cisco.com/c/en/us/td/docs/routers/access/4400/troubleshooting/memorytroubleshooting/isr4000_mem.html> Memory Troubleshooting Guide for Cisco 4000 Series ISRs<http://www.cisco.com/c/en/us/td/docs/routers/access/4400/troubleshooting/memorytroubleshooting/isr4000_mem.html> www.cisco.com DRAM for Cisco 4300 Series ISRs . Cisco 4300 ISR platforms use 1600MHz DIMMs for memory. The platforms have one or two DIMM slots for main system memory. _______________________________________________ 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/ _______________________________________________ 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/