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What is SDM Templates

SDM Templates SDM templates are used to configure system resources in the switch to optimize support for specific features, depending on how the switch is used in the network. The templates prioritize system resources to optimize support for three types o…

Catalyst 4500 Supervisor 7-E and Supervisor 7L-E ISSU Procedure

There are two methods of performing an ISSU upgrade: a four command procedure and a one command procedure. This section details how to use the one command version. The ‘quick’ option is not used as it not recommended in the installation notes due to i…

Catalyst 4500 Supervisor 7-E and Supervisor 7L-E

On the Catalyst 4500 Supervisor 7-E the uplinks ports can be used with 1GE with SFP GBICs or 10GE with SFP+. Only two ports are active on each Supervisor in a redundant configuration. If a Supervisor fails the physical ports should still remain active. &n…

Best CCIE Training in Gurgaon, Delhi NCR India : Uninets

Things to Keep in Mind While choosing a Best CCIE Training institute in Gurgaon, Delhi, India Cisco Certified Internetwork Expert(CCIE) is a technical certification offered by Cisco Systems. It certifies the skill required of network engineers to plan, op…

Catalyst 4500 Supervisor 6-E and 6L-E

The uplinks on the Supervisor Engine 6-E have three options in redundant mode operation:- 1 + 1 redundancy In this configuration, only one 10 Gigabit Ethernet uplink port on each of the two supervisor engines carries traffic, and each port forwards traffi…

EtherChannel Design Constraints

EtherChannel (or Port Channel) is a method to aggregate bandwidth or buldle ports between networking devices to provide or increase bandwidth capacity. The actual number of links which can be aggregated depends on the hardware and software capabilities. T…

Rapid PVST+ Design Constraints

Rapid PVST+ is the recommended version of Spanning Tree to be deployed. Rapid PVST+ should be configured in conjunctions with VLAN pruning on trunks, Portfast,& BPDU Guard on end-user ports (not ports connected to networking equipment like switches a…

6500 : Hardware/Software Recommendations

6500 : Hardware/Software Recommendations With the increasing number of different Catalyst desktop models and Supervisors for the chassis based Catalyst switches it is difficult to provide explicit recommendations without them becoming out of date. For the…

How to develop VSS Design

A typical design using VSS to link the two Core 6500 switches is shown below. Notice that all links are forwarding (no STP loops), all Access switches see the Core are one switch, HSRP is not required and STP is turned on (Core is STP Root) but isn’t bl…

Typical Collapsed Core Design

A typical Collapsed Core (Layer 2 Access) LAN is shown below as an example. Here two core switches are used. Each Core does not typically require dual Supervisors unless high availability is of utmost importance. Each edge switch is connected to each Core…