1. Overview
In Huawei switch series CE6800 we can configure Intelligent stack (iStack) technology combines multiple switches into a single virtual switch.
iStack technology provides high network reliability and scalability because each member of switches in a stack work in redundancy mode and easily increase the number its member.
Since both of the switches are in the same location, we will physically connect and configure them as a ring topology stack in this tutorial.
2. Prerequisites
In this tutorial, it is supposed that:
a. You have already understand the concept of Stack switch
b. You already know how to connect console cable to perform switch configuration
3. Physical Connection Planning
Since our case now all member switches are located near one another, ring topology is recommended, because this topology has higher reliability and link utilization. The following is the table of physical connection planning. We will use following service ports to be the stack ports
| CE6800 | |
| Stack Ring Connection | |
| Master | Slave |
| Stack-Port 1/1 | Stack-Port 2/2 |
| 100GE1/0/5 | 100GE2/0/5 |
| Stack-Port 1/2 | Stack-Port 2/1 |
| 100GE1/0/6 | 100GE2/0/6 |
| DAD | |
| 10GE1/0/1 | 10GE2/0/1 |
We will use port 100GE1/0/5 and 100GE1/0/6 to be working as iStack ports on Master switch and the same ports on Slave switch but after join Stack port in Slave switch will change name to 100GE2/0/5 and 100GE2/0/6.
Also, we will configure Dual-Active Detection (DAD) to prevent the case that stack cables fail, the stack splits into multiple stacks and causing problem.
4. Configure Stack
Execute the following configuration commands on switch that you wish to make it as the Master switch of the stack.
] stack
stack member 1 priority 150
stack member 1 domain 20
] interface stack-port 1/1
port member-group interface 100GE1/0/5
] interface stack-port 1/2
port member-group interface 100GE1/0/6
Next, execute the following configuration commands on switch that you wish to make it as the Slave switch of the stack
] stack
stack member 1 priority 120
stack member 1 domain 20
stack member 1 renumber 2 inherit-config
] interface stack-port 1/1
port member-group interface 100GE1/0/6
] interface stack-port 1/2
port member-group interface 100GE1/0/5
After finish stack configuration on both switch, we need to reboot both of them and verify stack status after they are all up back.
] dis stack -------------------------------------------------------------------------------- MemberID Role MAC Priority DeviceType Description -------------------------------------------------------------------------------- +1 Master 7c1c-f181-15c0 150 CE6870-48S6CQ-EI 2 Standby 7c1c-f181-1620 120 CE6870-48S6CQ-EI -------------------------------------------------------------------------------- + indicates the device where the activated management interface resides.
Then, it is good idea to have the description of all stack ports. So, we know which port is connected to switch ports.
] int 100GE1/0/5
des SW-Slave_100GE2/0/5-Stack
] int 100GE1/0/6
des SW-Slave_100GE2/0/6-Stack
] int 100GE2/0/5
des SW-Master_100GE1/0/5-Stack
] int 100GE2/0/6
des SW-Master_100GE1/0/6-Stack
6. Configure DAD
Dual-Active Detection (DAD) to prevent the case that stack cables fail, the stack splits into multiple stacks and causing problem. DAD is not mandatory to configure but it is highly recommend to configure it.
To configure DAD, run the following commands
# cd /etc/cron.d
] interface 10GE1/0/1
des OKMDRSW-STR01_10GE2/0/1-DAD
dual-active detect mode direct
] interface 10GE2/0/1
des OKMDRSW-STR01_10GE1/0/1-DAD
dual-active detect mode direct
Then, we can verify DAD configuration with the following commands.
] display dual-active Stack domainID: 20 Dual-active status: Normal Dual-active detect mode: Direct Dual-active detect configuration of MEth: Disable Dual-active direct detect interfaces configured: 10GE1/0/1 up (Physical) up (Protocol) 20 (PeerDomain) 10GE2/0/1 up (Physical) up (Protocol) 20 (PeerDomain) Dual-active relay detect interfaces configured: -- Excluded ports(configurable): -- Excluded ports(can not be configured): 100GE1/0/5 100GE1/0/6 100GE2/0/5 100GE2/0/6
7. Conclusion
That’s all about Configuring Stack of two Huawei CE6800 Switches from Tech Space KH. Hopefully, you can find this guide informative. If you have any questions or suggestions you can always leave your comments below. I will try all of my best to review and reply them.
