HDLC
hdlc
HDLC
encapsulation hdlc
HDLC
Serial interfaces do not pass any MAC information because the information is formed using WAN encapsulation (PPP. HDLC, Frame Relay).
a serial interface on a router is basically used for WAN communications. we generally connect to other routers through internet using serial interface. In a lab scenario we generally emulate WAN connections by connecting the serial interfaces of the routers using a cable called DCE/DTE cable.
The FastEthernet interface of R1 is disabled. One of the default routes is configured incorrectly. A routing protocol is not configured on both routers. The default gateway has not been configured on both routers.
Most serial interfaces use a default bandwidth value of 1.544mbps in EIGRP. Selvan S Chennai
The Cisco 2600 series routers are used to tie networks together, usually at the Access level.Each 2600 router has 1 or 2 Ethernet or Token Ring LAN interfaces, a Console and Aux port, and 2 WIC (WAN Interface Card) slots and an NM (Network Module) slot.WIC cards can be used to give the router 1 or 2 Serial WAN connections each, or things like ADSL interfaces, T1 cards, etc.NM modules can be used to give the router things like 2 extra WIC slots, 1 or 4 Ethernet ports, 4 slow serial WAN ports, 16 or 32 serial ports for controlling other routers, and many more.2600 series routers are also obsolete and no longer sold.
- When both ends of a serial WAN link are configured to run the PPP encapsulation method they establish a session based on the 3 steps below:Step 1- Link establishment and configuration negotiation- In this phase LCP opens the connection between the two interfaces and negotiates configuration options. this phase is done once the receiving router sends a configuration-acknowledgment frame back to the router who first initiates the connection...Step 2- Link quality determination (optional)- In this phase LCP tests the link between the routers to determine if the quality is sufficient to bring up the network layer protocol.Step3- Network Layer Protocol configuration negotiation- After step 2 ends, the appropriate NCP can separately configure the network layer protocols, and bring the protocol up and down at any given time. If LCP closes the link between the routers it will inform the network layer protocol so that it can take action in regards to the interfaces.- TERMS -PPP = Point-to-Point ProtocolLCP = Link Control ProtocolNCP = Network Control Protocols- hope this helps :)- miirii
The main types are Serial and Parallel.
No. Both COM ports and USB ports are serial interfaces, but the COM interfaces are driven by single device UARTs.
HDLC