black fiber??? ...without light??? ...

.."Is HDLC and PPP a technology utilised for providing leased line connections, or is it a packet switching technology or can it be used for both?
I know that they use a serial connection on the router ..."
CISCO....

https://community.cisco.com/t5/routing/ppp-hdlc-leased-line-and-packet-switching/td-p/2040994

COMMUNITY.CISCO.COM

PPP, HDLC leased line and packet switching

Hi all This is my first post so pls be gentle! I am doing home study for my ccent. I am a little confused about where PPP and HDLC fit into the types of WAN…

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  Elsa David it couldn't be more "secret" guys...that's my experience talking...

Elsa David

11 min · 

shit...this was...the old frequency

https://everything2.com/title/X.25+and+AX.25+Protocols

EVERYTHING2.COM

X.25 and AX.25 Protocols - Everything2.com

The X.25 protocol is a packet-switching protocol. AX.25 is closely related,…

...black fiber..? without light??? secret comm....take it

Black Mask

Agora mesmo · 

About Cilnet sa...means a man in the midlea for this
https://www.centurylink.com/…/network…/private-line-ds1.html

CENTURYLINK.COM

Private Line: T1/DS1 | CenturyLink

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