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The Collaborative International Dictionary

Peer \Peer\, v. i. [imp. & p. p. Peered; p. pr. & vb. n. Peering.] [OF. parir, pareir equiv. to F. para[^i]tre to appear, L. parere. Cf. Appear.]

  1. To come in sight; to appear. [Poetic]

    So honor peereth in the meanest habit.

    See how his gorget peers above his gown!
    --B. Jonson.

  2. [Perh. a different word; cf. OE. piren, LG. piren. Cf. Pry to peep.] To look narrowly or curiously or intently; to peep; as, the peering day.

    Peering in maps for ports, and piers, and roads.

    As if through a dungeon grate he peered.


n. (context internet English) The act of carrying communications traffic terminating on one's own network on an equivalency basis to and from another network, usually without charge or payment. vb. (present participle of peer English)


In computer networking, peering is a voluntary interconnection of administratively separate Internet networks for the purpose of exchanging traffic between the users of each network. The pure definition of peering is settlement-free, "bill-and-keep," or "sender keeps all," meaning that neither party pays the other in association with the exchange of traffic; instead, each derives and retains revenue from its own customers.

An agreement by two or more networks to peer is instantiated by a physical interconnection of the networks, an exchange of routing information through the Border Gateway Protocol (BGP) routing protocol and, in some special cases, a formalized contractual document.

Occasionally the word "peering" is used to describe situations where there is some settlement involved. In the face of such ambiguity, the phrase "settlement-free peering" is sometimes used to explicitly denote pure cost-free peering.

Usage examples of "peering".

The king half turned, peering up from his morning ablutions with a frown, as if worried to hear the approach of troops.

Farther back in the tunnel, Gaborn stood alone with a torch in hand, peering into the void while his knights broke camp.

So he watched the street for several long minutes, peering into the shadows.

The wylde was peering up toward the ceiling at the shaft, as if seeking a path to the reavers.

After a quick dinner, during which Gaborn kept peering into the distance, lost in thought, Averan felt ready to face the burrow.

The owl set its prey on the ledge, laid one claw over the creature, adjusted its wings, and sat with head lowered, peering at Erin for a long moment.

The rider came to a halt, and sat on his horse, peering critically at the defenses.

He clutched its scrawny neck, peering at it, wondering how it could be so hideous, and the thing twisted in his hands.

She leaned precariously on her staff, peering at Barris, Iome, and Gaborn, wondering if they would hate her, or fight her.

Spock too seemed to take note, peering over as the captain issued his orders.

Len stood at the back window, peering off to the right it seemed, out toward the barn and, beyond it, the fields.

Sulu glanced over at the sciences station and saw the first officer peering into his monitor.

He continued gazing about, peering at all the folks leaving church, though not in his normal, friendly way.

She stood up and moved about what appeared to be her living room, peering at one surface after another, obviously searching for her copy of the announcement.

Kirk said, peering over at Harriman, who still stood in front of the viewscreen.