Bandwidth Control in a Service Provider network

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Revision as of 04:39, 19 February 2009 by JohnRBB (talk | contribs) (Terminology)
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Links / Supporting Documents


Access / Aggregation Device

Devices that connect the End User to Your network. Probably some sort of "point-to-multipoint" thing such as:

  • miniPCI card in the EdgeRouter (either WAP or Ethernet ports)
  • Wireless Access Point, separate from EdgeRouter
  • Router with T1/T3/OC3s, etc.
  • DSLAM (Frame Relay / ATM switch)
  • Ethernet switch or bridge
  • Analog/ISDN modem bank
  • VPN concentrator

Backhaul / Backbone

Links between PoPs and other PoPs or Central Office(s)

Backhaul / Backbone Device(s)

Devices that route or bridge IP traffic bewteen PoPs and Central Office(s).

Bandwidth Control

The act of prioritizing and rate limiting IP traffic.

Bandwidth Control Device

A Mikrotik router performing Classification, Marking, Prioritization, and Rate Limiting on IP traffic.


The line between You and The Internet (your upstream internet providers and/or peers). The boundary between two different Autonomous Systems.

Border Router(s)

Device(s) connecting Your Network to The Internet (Your upstream providers or peers).

  • In single-homed networks, the router connecting to upstream internet provider. Could run external BGP or have default route with next hop of upstream provider.
  • In multi-homed networks, border routers most likely run external BGP
  • For most IGP protocols like OSPF or EIGRP, this is the origination point(s) of the default route which gets distributed to the network.

Bridged interface

one or more physical interfaces that are linked together to form a single logical interface that can be used as a Bandwidth Control upload or download interface.

Central Office

Physical location(s) where your network receives a connection from upstream providers and/or peers.


A bandwidth control grouping that defines a maximum upload and/or download speeds.


Traffic flowing FROM the internet TO the End User

Download interface

The interface on the Bandwidth Control Device that is or connects to the Access Device.


The line between "you" (the network where bandwidth control is being deployed, probably the reader of this document!) and the End User of "your" service.


A router placed as close as possible to the edge of the network. Probably placed between Backhaul device and Access device

End User / Customer / Client

The entity under bandwidth control. In general, this refers to the IP Address(es) assigned to the actual entity.

  • For an ISP, this is a customer
  • For a school, this could be faculty, staff, or student.
  • For typical businesses & government, this is employees


Traffic flowing FROM the End User TO the internet

Upload interface

The interface on the Bandwidth Control Device that is or connects to the Backbone device


The entity performing bandwidth control, Most likely the reader of this document! From the End User's perspective, this could be the ISP, the school, or the business/government.