Patrick Denis > Cisco > Routing and Switching
Routing and Switching
admin
July 22, 2015
An NTP service receives its time information from a time source with a higher level of authority than itself. The authority of a particular time servicer is indicated by its stratum. An NTP server that connects directly to an authoritative,…
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admin
July 15, 2015
This post will be updated often ! Any form of access to a network device should be authenticated so we need to configure users . ( see Users Post ) Password are not encrypted by default , you can configure…
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admin
July 14, 2015
You can create Users access by creating different privilege levels : (config)#privilege exec level ( level # ) (command) In the following example, the show ip route command is set to privilege level 15. To keep all show ip and show…
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admin
July 14, 2015
Creating users can be done in global configuration mode : (config)#username (name) password (word) OR (config)#username (name) privilege ( 0-15 ) password (word)
admin
July 14, 2015
To access a remote Cisco Router you can configure it in global mode : (config)#line vty 0 4 (config-line)#login Local ( see creating a user ) OR (config-line)#password (password) Dont forget that your password is save in plain text so…
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admin
July 14, 2015
(config-if)#ip host (name) (ip address)
admin
July 8, 2015
To create a Prefix-List you need tobe in global configuration mode : ip prefix-list ( option ) ( name ) seq (sequence number ) ( permit or deny ) (x.x.x.x )/(x) then you can use le and ge or a…
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admin
July 6, 2015
IP SLA use the concept of an operation. Each operations define the type of packet that the router will generate. IP SLA features measures the ongoing behavor of the network. IP SLA act as a tool to test and gather…
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admin
July 6, 2015
When a Packet arrive on the interface of a router the router take several logical decisions base on the data plane to process the packet. The packet arrive encapsulated inside the data link frame , so the router check the…
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admin
July 6, 2015
Router functions or divided in 3 operations planes : Management plane “Management operation ( ssh , vty etc … )” Control Plane” “Packet Fowarding Decision ( routing protocols )” Data Plane “Forwading Decision through a router ( End user to…
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