Various models of Cisco Catalyst 4948 switch : Layer 3 , trunking , link aggregation & ACL support
Posted on 2009-02-19
Are there several models of the Catalyst 4948 ?
I'll need a 48 port gigabit Cisco switch that
a) provide Layer 3 support (so that I can define ACLs to filter traffic between
our DMZ and other backend/production subnets
b)scalable : I need 90 ports currently but there could be plans for expansion, thus
more ports will be needed in future. Can I just trunk 2 or 3 or more of the 4948
switches together (using 2xRJ45 ports) to scale them for more ports. Is there
a limit as to how many of the switches that could be trunked together?
I usually hear that Fibre channel ports are used to trunk two switches together,
is there any shortcoming of trunking two switches using RJ45 LAN Cat 6 cables?
c)Some of our VMWare blade servers may need a total aggregate of 2 or 3 Gbps
bandwidth : which of the 4948 models support this link aggregation (802.?) ie
we connect up 2 NIC ports on a server to the switches' port to get a bigger
aggregate bandwidth throughput
d)Lastly someone ever told me it's possible to assign an IP address to a Layer 2
switch's port by creating a VLAN, assign the VLAN to a Layer 2 switch port
& then assign an IP addr to that VLAN : let me know the exact commands (step
by step) on how to go about setting this up