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

STP topology change process

Security - 802.1x with WLC and AAA server

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Segment Routing

Serial Interface default broadcast address

Session Border Controller

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Show open TCP-UDP ports on Cisco router

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Spine and leaf architecture - connections to spine switches

Spine and leaf architecture - reducing latency

Split-horizon

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Subscriber templating

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Supernetting

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Switch protected port

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Switching - switchport autostate command

Switching

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Switchport - show vlan internal usage

Switchport access

Switchport modes

Switchport trunk configuration ignores access commands

Switchport trunk encapsulation

Switchport trunk

Symmetric Digital Subscriber Line (SDSL)

Syslog - Logging buffered command

Syslog - logging discriminator

Syslog - terminal monitor

Syslog relay or proxy

Syslog severity levels

Syslog

TCP - Congestion control

TCP - Header

Serial Interface - Clock Rate

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