Selecting Stacking Cables; Using The Extreme Stacking Tool - Extreme Networks ExtremeSwitching 5420 Series Hardware Installation Manual

Selecting Stacking Cables

Selecting Stacking Cables
Stacking connections using the native stacking ports require stacking cables that are specific to the
type of stacking port. These cables are available from Extreme Networks in lengths from 0.5 meter to
100 meters.
Note
For the most recent information about available cables, contact your Extreme Networks sales
representative or refer to the
Caution
Use of non-recommended cables or optics could cause stack instability.
Alternative Configuration for Optics on X590, X690, X695, and X870 Switches
To use certain fiber cables and optical transceivers for stacking on X590, X690, X695, and X870
switches, you must use the V400 alternative-configuration option on the configure
stacking-support command. This option sets the stacking ports to 100 Gb, enables pre-emphasis,
and enables error correction using IEEE 802.3bj Clause 91 RS-FEC.
Table 16 lists cables and transceivers that require the use of V400 alternative-configuration:
Table 16: Cables and Transceivers that Require Alternative Configuration
Part Number
10401
10403
10404
10405
10441
10442
10443
10444
For details about the configure stacking-support command, see the
Command Reference

Using the Extreme Stacking Tool

The Extreme Stacking Tool provides an easy way to plan your stack. As you select various switch
models and stacking methods, the tool shows you:
•
What switch models can be stacked together and which cannot.
•
Whether switching methods – for example, SummitStack-V and SummitStack-V80 (supported in
EXOS 30.1 and prior releases only) – are compatible with the selected switches.
•
Statistics showing the routing options that are available with every stack combination.
64 ExtremeSwitching 5420 Series Hardware Installation Guide
Extreme Optics
Cable or Transceiver
100Gb SR4 QSFP28 MMF transceiver
100Gb LR4 QSFP28 transceiver
100Gb CWDM4 QSFP28 SMF transceiver
100Gb PSM4 QSFP28 SMF transceiver
QSFP28 x 4SFP28 (4x25Gb) active optical breakout cable - 5 meters
QSFP28 x 4SFP28 (4x25Gb) active optical breakout cable - 7 meters
QSFP28 x 4SFP28 (4x25Gb) active optical breakout cable - 10 meters
QSFP28 x 4SFP28 (4x25Gb) active optical breakout cable - 20 meters
Guide.
website.
ExtremeXOS 31.3
Building Stacks