Rate Limiting; Ethernet Port Interfaces; Rj-45 Interface; Optical Interface - GE JungleMUX SONET Technical Practice

Rate Limiting

Rate limiting can be applied to traffic being inputted and/or outputted through the
paddleboard ports. It is individually configurable for each access port, and for
each direction (input and output). The selectable rate limit values range from
128kb/s to 800Mb/s.
For input rate limiting, the user can define up to three rate limit values and
respective sets of criteria (rules) that will specify the frames to which the
respective rate limit will be applied. Each set of criteria includes the specific
frame type(s) (unicast, multicast, broadcast) and source priorities. The frames
that do not meet any of the configured (up to three) sets of criteria are not rate
limited.
Output rate limiting, if enabled, applies to all frames being outputted through the
given port regardless of their type (broadcast, multicast or unicast) and priority.

Ethernet Port Interfaces

RJ-45 Interface

Each RJ-45 port can auto-negotiate (when the feature is enabled) the maximum
data transfer speed (10 or 100 Mb/s) and mode (half or full duplex) with the far-
end device on the local LAN. When the device does not support auto-negotiation
and the ETHER-1000 unit‟s auto-negotiation for the port is enabled, the unit uses
the incoming signal's speed and half-duplex mode.
disabled, the user can configure the mode and speed as desired. In addition, the
RJ-45 ports support MDI/MDIX auto-sensing (if enabled).
Ethernet frames are discarded if too short (< 64 bytes), if too long (> 1632 bytes),
or if the CRC error-check fails. Ethernet errors are monitored and reported
through VistaNET software.
In half-duplex mode, collisions between Ethernet frames are expected to occur.
The standard IEEE 802.3 CSMA/CD algorithm is used to handle colliding frames.
RJ-45 ports are available on 86418-61 and 86418-64 quad-port modules,
equipped with four and two RJ-45 ports, respectively.

Optical Interface

Optical Ethernet interface can be either 1000 Mb/s full duplex or 100 Mb/s full
duplex.
Copyright  GE Multilin Inc. 2010-2012
342-86400-498PS
Issue 1.2
April 2012
Page 39
With auto-negotiation