[alcatel-nsp] 7750-SR1 memery management

[Ryan Landry]

6.1R14 fixed some BGP memory issues, where 'garbage collection' wasn't being called properly.  learned routes that are not accepted should be deleted by this algorithm, thus freeing up memory.  but, it was found that the collector was only called if you had at least one VPRN configured.

so, upgrade to R14, or configure a dummy VPRN as a work-around.

cheers

.rL

On 2010-04-29, at 6:41 AM, Pawel Sikora wrote:

> 
> Hi all. 
> 
> Is there any process or graceful way (except reload) to free allocated memory by BGP process 
> after shutting down some of BGPs sessions from route reflectors?  (SROS 6.1R9) 
> 
> One of my SR-1 reached  memory alert: 
> 
> A:SZCZC001RT03# show system memory-pools 
> 
> =============================================================================== 
> Memory Pools 
> =============================================================================== 
> Name               Max Allowed    Current Size      Max So Far          In Use 
> ------------------------------------------------------------------------------- 
> System                No limit      93,164,040      97,244,816      83,543,544 
> Icc                  8,388,608       2,097,152       2,097,152         929,224 
> RTM/Policies          No limit     105,906,176     105,906,176     100,912,424 
> OSPF                  No limit       1,048,576       1,048,576         338,088 
> MPLS/RSVP             No limit       8,842,920       9,891,496       8,502,656 
> LDP                   No limit       2,097,152       3,145,728       1,825,032 
> IS-IS                 No limit       5,554,240       5,554,240       4,494,792 
> RIP                   No limit               0               0               0 
> VRRP                  No limit       1,048,576       1,048,576             416 
> BGP                   No limit     157,352,256     157,352,256     149,085,232 
> Services              No limit       8,967,520       8,967,520       7,527,288 
> IOM                   No limit     363,450,184     364,498,760     352,815,384 
> CFLOWD                No limit       1,048,576       1,048,576          32,784 
> IGMP/MLD              No limit               0               0               0 
> PIM                   No limit               0               0               0 
> MCast Stack           No limit               0               0               0 
> IP Stack              No limit       5,305,416       5,305,416       4,386,496 
> MBUF                  No limit       5,837,312       5,837,312       4,900,208 
> IGMP/MLD Snpg         No limit       2,312,256       2,312,256       1,481,408 
> TLS MFIB              No limit       1,048,576       1,048,576         993,640 
> WEB Redirect         8,388,608       2,097,152       2,097,152       1,378,040 
> MSDP                  No limit               0               0               0 
> BFD                   No limit       2,097,152       2,097,152       1,050,328 
> MCPATH                No limit       1,048,576       1,048,576             216 
> ------------------------------------------------------------------------------- 
> Current Total Size :    770,323,808 bytes 
> Total In Use       :    724,197,200 bytes 
> Available Memory   :     61,317,776 bytes 
> =============================================================================== 
> 
> Then I shut down the two bgp sessions from a total of 3 full RR feeds, but BGP process didnt freed any 
> memory (in contrast the other SR-1 routers that have only single feed have only ca. 60M used for same bgp table). 
> I expect that some kind of garbage collection should start but no effect observed. 
> 
> So I feel some trouble behind corner...  On SR-1 the same hardware (looks like IOM-20g) is co-used by 
> IOM  and CPM functions (IOM process eating constantly 360M)  but 1GB of memory is definitely not enough. 
> Is there any way (i mean even unsupportted but working) to upgrade the mem on SR-1? 
> 
> Regards 
> Pawel Sikora/ 
> Netia S.A.<ATT00001..txt>