l
Load balancing
–
In load balancing mode, two NPUs forward services of their managed subcards
respectively to load balance the total traffic of all subcards. If one NPU is unavailable,
the other NPU will not take over services on the unavailable NPU. Therefore, the load
balancing mode is less reliable than the master/slave mode.
–
In load balancing mode, each NPU manages only the subcards in the same half board
cage as the NPU itself. For example, in the board layout shown in
, NPU 17
manages PICs 1 to 8, and NPU 18 manages PICs 9 to 16. If NPU 18 is unavailable,
NPU 17 will not take over the services of PICs 9 to 16.
Figure 3-5
CX600-X2-M8 board layout
23
FAN
21 PSU
22 PSU
11 SIC
12 SIC
10 SIC
9 SIC
18 NSU
17 NSU
3 SIC
4 SIC
2 SIC
1 SIC
19 MPU
20 MPU
15 SIC
16 SIC
14 SIC
13 SIC
7 SIC
8 SIC
6 SIC
5 SIC
Numbering Rule of Service Interfaces on the CX600-X2-M16
Numbering Rule of Service Interfaces on the CX600-X2-M16
Service interfaces on the CX600-X2-M16 are numbered in the following format: 0/subcard slot
number/interface number on the subcard.
l
A subcard slot number is the number of the slot where an interface's subcard resides. A
subcard slot number ranges from 1 to 16.
l
An interface number on the subcard starts with 0, and its maximum value is determined by
the actual number of interfaces on the subcard.
Table 3-4
Slot layout of the CX600-X2-M16
Slot
Numb
er
Remarks
1 to 16
16
For PICs, which include HICs, FICs and the other subcards.
17 and 18
2
For NPUs.
HUAWEI CX600-X1-M/CX600-X2-M Series Metro
Services Platform
Hardware Description
3 CX600-X2-M16 Hardware Description
Issue 03 (2014-04-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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