May 16, 2011 12:49 PM
Posted by: Sulaiman Syed
access,
ACL,
Cisco,
DCNM,
distribution,
F1,
Fabric,
FabricPath,
forwarding,
IPv4,
IPv6,
M1,
M1-XL,
MAC,
Nexus 7000,
security group tags,
SGT,
Unicast,
vlan,
VSANCisco Nexus series switches brought a new technology to the data center. The whole designed is changed from the Catalyst 6500 series. Nexus is no longer dependent on SUP's backplane, it is more like a midplane architecture. Let me elaborate a little on this, what that statement means that...
December 7, 2010 2:59 AM
Posted by: Sulaiman Syed
access,
CCNP,
Cisco,
ip,
list,
map,
network,
route,
subnetIP prefix list mostly used with route filtering in IGP (OSPF, IS-IS, EIGRP) and EGP (BGP) protocols. At first sight, the command will look confusing, but it is pretty simple and straight forward.
Prefix list can be used with route map, and they would be referred...
October 31, 2010 2:39 PM
Posted by: Sulaiman Syed
access,
Cisco,
client,
configuration,
core,
design,
distribution,
network,
routed,
switch,
trunk,
vtpThis is the final part of the series. In this blog entry, I would post the sequence and the configuration lines that are needed to be done in order to have smooth transition from trunk ports to routed ports. The
October 27, 2010 3:46 AM
Posted by: Sulaiman Syed
access,
Cisco,
core,
design,
distribution,
ip,
network,
routed,
scheme,
subnet,
trunk,
vlanIn this part, I would talk bout the migration from current network, to the proposed network.
Figure 1 shows a core layer with two distribution layer, the one on the left is current, and the one on the right is the proposed. Before explaining any further, take note that although user vlans were...
October 15, 2010 12:21 PM
Posted by: Sulaiman Syed
access,
Cisco,
issue,
switch,
trunk,
vlan,
vtpAlthough Vlan Trunking Protocol does its job in distributing vlan database from server to all the other client switches. It has some major issues when wrongly implemented or trunk negotiation between switches.
1- Always reset the revision number of a switch before adding to production network....
October 1, 2010 10:55 AM
Posted by: Sulaiman Syed
access,
ACL,
based,
list,
map,
PBR,
policy,
route,
routing,
vlanIn Policy Based Routing - part 1 I have explained why and how we can use PBR in production environment. Today, i shall post...
