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Configuration Guide - Device Management

S2720, S5700, and S6720 V200R013C00

This document describes the configurations of Device Management, including device status query, hardware management, Stack, SVF, cloud-based management, PoE, monitoring interface, OPS, energy-saving management, information center, fault management, NTP, synchronous ethernet, PTP.
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S6720HI Service Port Stacking Support

S6720HI Service Port Stacking Support

NOTE:
  • For the cables that can be used as stack cables, see "Cables" in the Hardware Description. Using other cables may cause exceptions in the stack system, for example, frequent error-down events on stack ports.
  • For stacking-supported service ports, some of them can be used as stack ports, whereas some can be used as ordinary service ports.
  • The first 12 10GE ports of the S6720-50L-HI-48S cannot be used as stack member ports.
  • S6720HI series switches of all versions can set up stacks in service port stacking mode using dedicated stack cables.
  • The number of stacked switches is recommended to be 2 to 9.
Table 3-23  Service port stacking support

Device Series

Port Supporting Stacking Stack Cable Rate of a Single Port

Remarks

S6720HI

10GE ports on the front panel
  • 1 m, 3 m, and 5 m SFP+ passive high-speed copper cables
  • 10 m SFP+ active high-speed copper cables
  • 3 m and 10 m AOC cables
  • 10GE SFP+ optical module and optical fiber
  • 0.5 m and 1.5 m SFP+ dedicated stack cable
10 Gbit/s
  • Any models of the S6720HI series can set up a stack.
  • Two types of ports on an S6720HI can both be configured as stack member ports, but each logical stack port contains only the same type of stack member ports.
  • When 10GE ports on the front panel are used as stack ports, a switch supports a maximum of two logical stack ports, and each logical stack port supports at least one stack member port and at most eight stack member ports. A switch supports a maximum of 16 stack member ports.
  • When 40GE ports on the front panel are used as stack ports, a switch supports a maximum of two logical stack ports, and each logical stack port supports at least one stack member port and at most six stack member ports. Each switch can use a maximum of six service ports as stack member ports.
  • When 100GE ports on the front panel are used as stack ports, a switch supports a maximum of two logical stack ports, and each logical stack port supports a maximum of two stack member ports. Each switch can use a maximum of two service ports as stack member ports.
  • Only the last 16 10GE ports on the front panel can be used to set up a stack using dedicated stack cables.
  • 40GE ports do not support the stacking function after they are split into 10GE ports.
  • When 100GE ports are used as stack member ports and are connected using 1 m, 3 m, and 5 m QSFP+ passive cables or QSFP+ optical modules (QSFP-40G-SR-BD not supported) and fibers, you can run the stack port speed command to reduce their working speed from 100 Gbit/s to 40 Gbit/s. After their working speed is reduced to 40 Gbit/s, switches using these ports can set up a stack with switches using ports working at 40 Gbit/s and cannot set up a stack with switches using ports working at 100 Gbit/s.
40GE ports on the front panel
  • 1 m, 3 m, and 5 m QSFP+ passive high-speed copper cables
  • QSFP+ optical module (QSFP-40G-SR-BD not supported) and optical fiber
  • 10 m QSFP+ AOC cable
40 Gbit/s
100GE ports on the front panel
  • 1 m, 3 m, and 5 m QSFP28 high-speed copper cables
  • 10 m QSFP28 AOC cables
  • QSFP28 optical module and optical fiber
100Gbit/s
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Updated: 2019-04-20

Document ID: EDOC1100065674

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