Serial - Data Communication Equipment (DCE)

Serial - Data Terminal Equipment(DTE)

Serial - Link between two routers


When configuring a Serial interface on a Cisco router, the clock rate must be configured on the device acting as a [DCE](/serial-data-communication-equipment-dce) side of the link.  The clock rate must not be configured on the [DTE](/serial-data-terminal-equipmentdte) side of the link, otherwise it can create a fault in the syncing of the link communication.

## Links

https://forum.networklessons.com/t/eigrp-static-neighbor/1244/32?u=lagapidis

https://networklessons.com/frame-relay/cisco-frame-relay-switch-configuration#Configuration

https://networklessons.com/cisco/ccna-routing-switching-icnd1-100-105/cisco-ios-router-basic-configuration#Interfaces



Serial Interface - Clock Rate

STP cost short mode

STP determining blocked port using cost

STP direct vs indirect link failure

STP fine tuning the spanning tree protocol

STP how a switch identifies a BPDU

STP how to find the root bridge

STP interface type

STP prio nbr value

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Serial Interface - Clock Rate

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