Routing

Gain lot of techincal knowledge and understanding of routing protocols like (RIP, EIGRP, OSPF, BGP, NAT, PAT IPv4 & IPv6)

BGP Aggregation | Summarization

BGP Aggregation | Summarization

BGP Aggregation | Summarization :- It reduces the size of routing table. It minimizes the number of routing updates. To summarize network at least...

Link flap & err-disabled problem in CISO IOS

Link flap & err-disabled problem in CISO IOS Link Flap Problem  :-  Link flap means that the interface continually goes up and down. The interface...
show list of license installed in cisco router

show list of license installed in cisco router

show list of license installed in cisco router :- Use the show license command to verify what licenses are enabled in cisco Router.
Difference between standard access list and extended access list

Difference between standard access list and extended access list

Difference between standard access list and extended access list :-  Standard ACL Extended ACL Allow filtering based on source address. Allow filtering based on source and destination addresses,...
Extended Access List

Extended Access List

Extended ACLs :-  With extended access lists, you can match more information, such as: Source and destination IP Address Source and destination TCP or UDp...
Named-ACL

Named Access List

Named Access List: - Basically, when we create an Access List we assign a number. But number is not so user friendly, so we can...

Access List Troubleshoot

Access List Troubleshoot :-  Lets creates one scenario here. Suppose you forgot to write, permit statement after deny statement. The traffic which is unclassified will automatically deny. Lets...
CRC errors

How to resolve CRC errors

How to resolve CRC errors Use below command to check CRC errors in CICO IOS. Command :- show interfaces fastEthernet x counters errors Command :- show interfaces fastEthernet x  CRC...

CISCO IOS Hardening- Interface Hardening

CISCO IOS Hardening- Interface Hardening :- Following commands need to enter ? # no cdp enable # ip accounting access-violation # no ip directed-broadcast #...
how to check power supply status in cisco router

how to check power supply status in cisco router

how to check power supply status in cisco router :-  The show environment command can be very helpful to alert you of potential hardware issues. But...