[c-nsp] Diff between 3508G and 3550-12G

Sven 'Darkman' Michels sven at darkman.de
Mon Apr 19 15:35:36 EDT 2010


Hi,

if i remember correctly, the 3508 has limited line rates of around
700mbit/s on the first 6 ports, only port 7 and 8 will do full 1gbit/s.
So you might add this to your list (or when i'm wrong, just ignore it ;)

Regards,
Sven

Joseph Karpenko schrieb:
> here is some data on the 3508G and 3550-12G and i've also included
> some info on the 2960G-24TC.  check out the values listed for both
> the switch-fabric and forwarding-rate between the 3 switches.  i'd
> also note that the 3550-12G is 1.5 RU -- not sure if rack space is
> an issue, but wanted to point that out.
> 
> not sure if that helps in your decision but the 2960G-24TC is also
> another one that'll will double your port-density and provide more
> throughput.  all just depends on what which features you require.
> 
> 
> 3508G
> ------------------------------------------------------
> Form Factor:         1 RU
> Switch Fabric:       10.8 Gbps
> Forwarding Rate:     8 Mpps
> Ports:               GBIC (8), 10/100/100 (0)
> VLAN Trunking:       All Ports
> EtherChannel:        All Ports
> VLANs:               250 (64 max STP instances)
> Voice-VLAN Capable:  Yes
> Multi-VLAN Capable:  All Ports
> Max MAC Addresses:   8,000
> Max MTU:             2,018
> Multicast:           CGMP Only
> Ingress Policing:    None
> QoS Granularity:     N/A
> DSCP/CoS Remarking:  No
> Layer 3:             No
> 
> 
> 3550-12G
> ------------------------------------------------------
> Form Factor:         1.5 RU
> Switch Fabric:       24 Gbps
> Forwarding Rate:     17 Mpps
> Ports:               GBIC (10), 10/100/100 (2)
> VLAN Trunking:       All Ports
> EtherChannel:        All Ports
> VLANs:               4000 IDs max (up to 1024 which
>                      can be configured at one time)
>                      128 max STP instances
> Voice-VLAN Capable:  Yes
> Multi-VLAN Capable:  No
> Max MAC Addresses:   12,000
> Max MTU:             2,000
> Multicast:           ICMP/PIM(L3) (8,000 group max)
> Policing:            Ingress and Egress
>                        * 8 per 10/100 port
>                        * 128 per 1000 port
> QoS Granularity:     8Kbps-100Mbps (10/100 ports)
> DSCP/CoS Remarking:  Yes
> Layer 3:             Full L3 license included
> 
> 
> 2960G-24TC
> ------------------------------------------------------
> Form Factor:         1 RU
> Switch Fabric:       32 Gbps
> Forwarding Rate:     35.7 Mpps
> Ports:               10/100/1000 (24)
> VLAN Trunking:       802.1q Only
> EtherChannel:        All Ports
> VLANs:               
> Voice-VLAN Capable:  Yes
> Multi-VLAN Capable:  No
> Max MAC Addresses:   8,000
> Max MTU:             9,000
> Multicast:           IGMP Snooping in hardware (255
>                      groups max)
> Ingress Policing:    None
> QoS Granularity:     1Mbps
> DSCP/CoS Remarking:  Yes
> 
> 
> additional information can be obtained from the following links:
> <http://docs.google.com/gview?url=http://www.cisco.com/web/partners/downloads/765/tools/quickreference/switchperformance.pdf>
> <http://docs.google.com/gview?url=http://www.cisco.com/web/partners/downloads/765/tools/quickreference/catalyst3x00.pdf>
> <http://docs.google.com/gview?url=http://www.cisco.com/web/partners/downloads/765/tools/quickreference/cat29-eng.pdf>
> 
> 
> regards,
> 


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