Questions tagged [atm]
For questions about Asynchronous transfer mode (ATM), where the use of ATM technology has eventually been largely superseded by Internet Protocol (IP)-only technology.
18 questions
1 vote
2 answers
121 views
How did ATM switches that were implemented in a core of IP network improve QoS and higher data rate?
How can ATM switch improve Quality of service and data rate just by incorporating them into the core of IP network? What was used in the sore of IP networks before ATM switches and what is used today ...
1 vote
1 answer
136 views
Is this how ATM and SONET work?
This is how I visualize how SONET carry ATM, and how ATM carry IP: Is my visualization correct?
- 531
0 votes
1 answer
236 views
Is ATM a Wide Area Network?
Is Asynchronous Transfer Mode a wide area network? Or is it just a framing protocol? What I mean by wide area network is that, if there is such a thing called "ATM provider", does it mean ...
- 531
0 votes
2 answers
328 views
Where are ATM switches located in real life?
Consider the following diagram from this link: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/bbdsl/configuration/xe-3s/bba-xe-3s-book/bba-ppoe-atm-xe.html If I am correct, here's how I see it ...
- 531
1 vote
2 answers
261 views
Do X.25/Frame Relay/ATM/MPLS have their own switches?
In the context of networking when we say "switch" we always think of Ethernet switch. But do we have X.25 switch, Frame Relay switch, ATM switch, and MPLS switch? If yes, how are they ...
- 531
0 votes
1 answer
72 views
Virtual Circuits in a narrow band network
I know that in a broadband network a virtual circuit is established like in an X.25, frame relay and ATM. Is there a virtual circuit established in narrow band network and if yes then how is it ...
- 133
1 vote
1 answer
64 views
X.25 packet formats
In the different packets types of X.25 can you please tell me what does M D Q and X stand for? Also what is P(S) and P(R)?
- 133
2 votes
1 answer
2k views
packet-switching, circuit-switching, PVC and SVC
I am studying by this book: West, Jill. Network+ Guide to Networks.. [VitalSource]. What I understand from what is explained there is that there are two kind of virtual circuit technologies PVC and ...
- 21
3 votes
2 answers
4k views
What are the reasons for ADSL to use ATM instead of Ethernet
I'm a newbie to networking and I wonder what are the reasons for ADSL to use ATM instead of Ethernet ?
- 135
1 vote
1 answer
530 views
Why are Frame Relay, ATM and MPLS called "Layer-2 VPN"?
A VPN results, when two physically separate networks become virtually one bigger network. But Frame Relay, ATM and MPLS don't do that, they just connect two network, but they don't unify them. So ...
- 782
1 vote
2 answers
605 views
WAN lines types - understanding leased line/circuit
Studying the WAN lines types, am I right regarding the statements below, or if not, could you correct me please: A real leased line, could be performed with TDM on a line with for example SDH, TDH or ...
- 1,085
3 votes
1 answer
928 views
When X.25 or ATM were used in ISP networks or Internet backbone was the protocol running over this layer still TCP/IP? [closed]
What was the protocol usually used on top of X.25 and ATM or even Frame Relay Networks when those were commonly used? Was it also TCP/IP protocol stack or some other protocol stack? From what I know ...
- 1,551
3 votes
1 answer
1k views
What's the difference of TR-069 and Point-To-Point protocol?
I've read my ISP, Telecom uses a Point-to-Point regarding the ADSL networking over ATM nowadays (which is rarely used in my country, and it's non-commercial). My friend told me it actually uses TR-069,...
- 133
4 votes
1 answer
138 views
PVC not Accepted by CISCO 878
I have the following config. set up for an MPLS network on my CISCO 878: Current configuration : 941 bytes ! version 12.4 no service pad service timestamps debug datetime msec service timestamps log ...
- 163
1 vote
1 answer
2k views
ATM protocol: VCI and VPI definition
I want to answer a past exams question with a clean/simple way about: Why does ATM protocol use for virtual circuit numbering both VPI and VCI logical numbers? From what I've understood: The VCI ...
- 13