Cisco 3750 Mac address cache size
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Posted by on June 5, 2008, 1:40 pm
Please log in for more thread options How big MAC address cache size support for Cisco 3750? 12k? Does it base on port or switch? TIA, st | |||||||||||||
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Posted by Thrill5 on June 7, 2008, 12:50 am
Please log in for more thread options only a limited amount of CAM memory and must be allocated for mac addresses (switching and multicast) and CEF tables (routing). The SDM profile adjusts how much CAM memory is allocated for each of these purposes. The command to see how CAM is allocated is something like "show sdm profile" | |||||||||||||
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Posted by on June 7, 2008, 1:27 am
Please log in for more thread options On 6=D4=C26=C8=D5, =CF=C2=CE=E79=CA=B150=B7=D6, "Thrill5" <nos...@somewhere.=
com> wrote:
s
> Depends on your SDM profile. I think the default is 8k. The 3750/3560 has > only a limited amount of CAM memory and must be allocated for mac addresse= > (switching and multicast) and CEF tables (routing). The SDM profile adjus=
ts
> how much CAM memory is allocated for each of these purposes. The command=
> to see how CAM is allocated is something like "show sdm profile"
> > > > > > > Hi,
> > How big MAC address cache size support for Cisco > > 3750? 12k? Does it base on port or switch? >
> > TIA,
> > st- =D2=FE=B2=D8=B1=BB=D2=FD=D3=C3=CE=C4=D7=D6 - >
> - =CF=D4=CA=BE=D2=FD=D3=C3=B5=C4=CE=C4=D7=D6 - Thanks, I'll check it on Monday. Today I test one port using Spirent AST II on the 3750G. It is 4K for that port. I don't know Cisco give one numner for switch or also has a limited MAC size number for a single port. Any comments? /st | |||||||||||||
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Posted by Stephen on June 7, 2008, 9:03 am
Please log in for more thread options On Fri, 6 Jun 2008 22:27:44 -0700 (PDT), aaabbb16@hotmail.com wrote:
>> Depends on your SDM profile. I think the default is 8k. The 3750/3560 has
>> only a limited amount of CAM memory and must be allocated for mac addresses >> (switching and multicast) and CEF tables (routing). The SDM profile adjusts >> how much CAM memory is allocated for each of these purposes. The command >> to see how CAM is allocated is something like "show sdm profile" >> >> >> >> >> >> > Hi,
>> > How big MAC address cache size support for Cisco >> > 3750? 12k? Does it base on port or switch? >>
>> > TIA,
>> > st- ?????????????? - >>
>> - ?????????????? - >
>Thanks, >I'll check it on Monday. Today I test one port using Spirent >AST II on the 3750G. It is 4K for that port. I don't know >Cisco give one numner for switch or also has a limited >MAC size number for a single port. >Any comments? on the smaller switches it is 1 table for the entire switch. 1 other thing to watch is there is not much buffer memory (2Mbyte for all ports on a 24p 10/100 + 2 SFP unit) - we have some acting as "WAN edge" routers for 10 and 100 Mbps Ethernet WAN, and tweaking the buffers to handle GigE -> 10M has some compromises.
>/st
--
Regards stephen_hope@xyzworld.com - replace xyz with ntl | |||||||||||||
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> How big MAC address cache size support for Cisco
> 3750? 12k? Does it base on port or switch?
>
> TIA,
> st