Ethernet Switches & Routers

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Registered: ‎01-02-2013

MLX line card, available memory issue & questions

A month ago I started noticing this getting logged in my syslog collector:

Current Total Free Memory (26841088) on LP 1 is below 5 percent of Installed Memory.

After 2 weeks the memory free had decreased maybe 200K, and reading on f-nsp I saw people talking about a year at 2% free without issues, I started searching for how to perhaps free up memory. Lots of talk about changing cam profiles, however ipv4-ipv6-2 is the profile I want to use. Checking back after a few more weeks now, I'm now facing a seriously reduced amount of free memory that appears to now be dropping 4K every 5mins:

Current Total Free Memory (7512064) on LP 1 is below 5 percent of Installed Memory.

No changes in BGP/OSPF routes, no new ACLs applied. Looking for commands to show what specifically is using up this much memory on this line card, as well as ways to free up memory in use without reloading the card or router. Hoping the community has ideas.

Diag info below:

Chassis: MLX NetIron 4-slot

==========================================================================

SL 1: NI-MLX-10Gx4 4-port 10GbE Module (Serial #: SA27090873, Part #: 35600-202D)

Boot     : Version 5.2.0T175 Copyright (c) 1996-2009 Brocade Communications Systems, Inc.

Compiled on Jun  7 2011 at 17:06:54 labeled as xmlprm05200

(514997 bytes) from boot flash

Monitor  : Version 5.2.0T175 Copyright (c) 1996-2009 Brocade Communications Systems, Inc.

Compiled on Jun  7 2011 at 17:07:18 labeled as xmlb05200

(515819 bytes) from code flash

IronWare : Version 5.2.0cT177 Copyright (c) 1996-2009 Brocade Communications Systems, Inc.

Compiled on Oct 28 2011 at 14:47:22 labeled as xmlp05200c

(6523731 bytes) from Primary

==========================================================================

NetIron MLX LP SL 1:

Total SDRAM         :   536870912 bytes

Available Memory    :     7532544 bytes

Available Memory (%):           1 percent

====================================================================

CAM partitioning profile: ipv4-ipv6-2

Slot 1 XPP20SP 0:

            491520(size),   60175(free), 87.75%(used)

        Smiley FrustratedNet 0:   2048(size),    1972(free), 03.71%(used)

        Smiley FrustratedNet 1: 447816(size),   57187(free), 87.22%(used)

        Smiley FrustratedNet 2:  34695(size),     562(free), 98.38%(used)

        Smiley FrustratedNet 3:   5400(size),      65(free), 98.79%(used)

        Smiley FrustratedNet 4:    982(size),      22(free), 97.75%(used)

        Smiley FrustratedNet 5:    182(size),       3(free), 98.35%(used)

        Smiley FrustratedNet 6:     28(size),       0(free), 100.00%(used)

        Smiley FrustratedNet 7:      4(size),       0(free), 100.00%(used)

        Smiley FrustratedNet 8:      2(size),       2(free), 00.00%(used)

        Smiley FrustratedNet 9:     11(size),      11(free), 00.00%(used)

====================================================================

Slot 1 XPP20SP 1:

            491520(size),   60171(free), 87.75%(used)

        Smiley FrustratedNet 0:   2048(size),    1968(free), 03.90%(used)

        Smiley FrustratedNet 1: 447816(size),   57187(free), 87.22%(used)

        Smiley FrustratedNet 2:  34695(size),     562(free), 98.38%(used)

        Smiley FrustratedNet 3:   5400(size),      65(free), 98.79%(used)

        Smiley FrustratedNet 4:    982(size),      22(free), 97.75%(used)

        Smiley FrustratedNet 5:    182(size),       3(free), 98.35%(used)

        Smiley FrustratedNet 6:     28(size),       0(free), 100.00%(used)

        Smiley FrustratedNet 7:      4(size),       0(free), 100.00%(used)

        Smiley FrustratedNet 8:      2(size),       2(free), 00.00%(used)

        Smiley FrustratedNet 9:     11(size),      11(free), 00.00%(used)

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