Labnario Huawei From Scratch

Sometimes we can meet such situation on a router or a switch:

 [labnario]display users
  User-Intf    Delay    Type   Network Address     AuthenStatus    AuthorcmdFlag
+ 34  VTY 0   00:00:00  TEL    172.29.12.226             pass           no      Username : huawei
  35  VTY 1   00:08:01  TEL    172.29.12.226             pass           no      Username : labnario
  36  VTY 2   00:07:38  TEL    172.29.12.226             pass           no      Username : killer
  37  VTY 3   00:07:00  TEL    172.29.12.226             pass           no      Username : killer
  38  VTY 4   00:01:34  TEL    172.29.12.226             pass           no      Username : labnario

By default, on Huawei device, there are 5 vty lines available. If all these lines are occupied by users, no other user is able to access the device. Such situation can appear in 2 cases:

1. The device is fully occupied by telnet users.
2. All telnet sessions are hang.

The first case is normal and it can often happen. Sessions will be deleted when users log out from the device or their sessions’ idle-timeout expires. By default idle-timeout is set to 10 minutes.

Maybe it should have been shown at the beginning of this blog…

As you probably know, Huawei datacom devices are divided in 2 segments: Telco and Enterprise. But what you decide to choose depends on you. You do decide which device you want to use, regardless of it is intended for telco or enterprise. You know the best which device is appropriate for your network. Having detailed technical specification you are able to choose the device which meets your requirements.

For those who don’t know where to find information about Huawei’s portfolio, I am sending direct links to proper pages:

Huawei Telco

I decided to spend my vacation without access to internet, only wife, children, beach and windsurfing. I succeeded, September 3rd was the first day, after 3 weeks of my vacation, when I opened my mail box. Sorry for the delay in replying for your emails.

Last time I was asked about a procedure how to upload files through console port. The procedure is simple and I will try to show it in this post. Taking Huawei’s S3300 switch as an example I will show you how to upload file through console port, upgrading bootrom at the same time. Notice that uploading files by console is very slow and it is better to use it only for small files, unless you do not have any other choice.

Please use HyperTerminal to upload files by console port.

Power on the switch and enter into bootrom mode by pressing CTRL+B (default password huawei):

BIOS LOADING ...

Copyright (c) 2008-2010 HUAWEI TECH CO., LTD.
(Ver329, Aug 17 2010, 02:01:19)
Press Ctrl+B to enter BOOTROM menu ... 2
password:

BOOTROM  MENU

1. Boot with default mode
2. Enter serial submenu
3. Enter startup submenu
4. Enter ethernet submenu
5. Enter filesystem submenu
6. Modify BOOTROM password
7. Reboot
Enter your choice(1-7): 2

Huawei NE40E OSPF basic configuration:

#ospf 1 router-id 1.1.1.1
 area 0.0.0.0
  authentication-mode simple plain labnario
  network 10.0.0.0 0.0.0.3
  network 1.1.1.1 0.0.0.0
#

How to display OSPF neighbour:

[NE40E-1]display ospf peer

         OSPF Process 1 with Router ID 1.1.1.1
                 Neighbors

 Area 0.0.0.0 interface 10.0.0.1(GigabitEthernet3/0/0)'s neighbors
 Router ID: 2.2.2.2          Address: 10.0.0.2
   State: Full  Mode:Nbr is  Master  Priority: 1
   DR: 10.0.0.2  BDR: 10.0.0.1  MTU: 0
   Dead timer due in 34  sec
   Retrans timer interval: 5
   Neighbor is up for 00:33:07
   Authentication Sequence: [ 0 ]

That was to be expected. Poland is out of Euro Cup. The only thing we can do is to come back to the real world :).

Today I will show you how to use ACLs and traffic policies for packets’ lost troubleshooting in a network.

Huawei ACL and traffic policy configuration

Let’s assume that we have such topology:

What we have to do is to check end-to-end connectivity between CE and R2 Loopback100 interface, to find where packets are being lost.