Category: Cisco

27

Mar2014

What is 802.1.q-2005 MSTP, Multi-Instance Spanning Tree?

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Multi-Instance Spanning Tree (MSTP), IEEE 802.1.q-2005,  to allow for additional features in Rapid Spanning Tree Protocol, such as "Per Vlan" STP as is found in PVST+. The concept behind MSTP is that Layer 2 devices could be further subdivided into regions and vlans could be added to the regions as instances. ... Read More
March 27, 2014Praveen Bahethi

16

Jan2014

How to configure ASA security levels?

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INSIDE interface int vlan 1 nameif inside security-level 100 ip address 10.1.1.1 255.255.255.0 OUTSIDE interface interface Vlan 666 nameif outside security-level 0 ip address 1.1.1.1 255.255.255.248 DMZ interface interface vlan 300 nameif dmz security-level 50 ip address 172.16.1.1 255.255.255.0 ### <-PREVIOUS How to configure ASA security levels? NEXT-> What is NAT?  
January 16, 2014Praveen Bahethi

16

Jan2014

What are Cisco ASA firewall security levels?

8
ASA Security Levels are used to define how traffic initiated from one interface is allowed to return from another interface.  Higher level security interfaces can initiate traffic to a lower level without an access list.  Any traffic returning from a higher level initiated communications are allowed to pass thru from lower ... Read More
January 16, 2014Praveen Bahethi

15

Jan2014

How to configure STP root and load balancing using Cisco PVST/PVST+?

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Configuring STP on Cisco switches is straightforward since STP is on by default.  This default ensures loop-free topologies when connecting Cisco Switches and is very useful in Campus and Access LANs. For our example, we'll be using the network topology below. The switches are in a triangle with switchA as ROOT of ... Read More
January 15, 2014Praveen Bahethi