Saturday , November 18 2017

assigning multiple IP addresses to network interface

Why might we want to assign multiple IP addresses to the same interface? The following are the most common scenarios:

  • hosts in the network segment use IP addresses on different networks
  • there are not enough host addresses on a logical network segment, suppose a /24 address space and 300 hosts
How to configure multiple IP addresses on Huawei devices?

Let’s configure a pair of routers connected via a Gigabit Ethernet link and use four different logical networks.

[labnarioR1]int gi 0/0/0
[labnarioR1-GigabitEthernet0/0/0]ip add 192.168.12.1 255.255.255.0
[labnarioR1-GigabitEthernet0/0/0]ip add 10.0.12.1 255.255.255.0 sub
[labnarioR1-GigabitEthernet0/0/0]ip add 10.0.22.1 255.255.255.0 sub
[labnarioR1-GigabitEthernet0/0/0]ip add 10.0.32.1 255.255.255.0 sub

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indoor and outdoor Huawei ATN905

As you know I try to avoid products descriptions here, on this blog. But last time I had possibility to see ATN905 boxes, available in the indoor and outdoor types. You can install them in various environment. The application scenarios of ATN905 are divided into the small-cell base station bearer scenario and the Ethernet demarcation device (EDD) scenario.

Let’s look at the pictures of the two types of this router:

Indoor ATN905 picture

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from Huawei CLI – check …

Very useful command, especially when you are preparing and executing upgrade of a software of Huawei carrier class devices, like NE40E and CX600. Let’s look what can be checked by this command:

<labnario>check ?
  hardware-compatibility  hardware compatibility
  startup                 Check the version of the resource file
  system-software         system-software
  version                 check version

I personally use “check hardware-compatibility” before all planned upgrades. During a preparation phase of an upgrade, you have to read software release notes, to be sure that all software and hardware components will be compatible with the new software. You can check hardware compatibility by the command, instead of searching software documents.

Imagine that you’ve just uploaded a new software to CFcard of a router. The new software is v600r006c00spc300.

<labnario>check hardware-compatibility v600r006c00spc300.cc
Slot#    BoardType        Result           Detail
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
3        CR57LAXFB00      Compatible       NA
4        CR57LAXFB00      Compatible       NA
5        CR57EMGFB20      Compatible       NA
6        CR57EMGFB20      Compatible       NA
9        CR57SRU200A5     Compatible       NA
10       CR57SRU200A5     Compatible       NA
11       CR57SFU200C0     Compatible       NA
12       FRA200A          Compatible       NA
13       FRA200A          Compatible       NA

It’s very simple, isn’t it?

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new options in display elabel command

Some time ago I described how to display electronic labels. As you probably could see, the displayed information looked illegibly, especially for budding engineers.

Starting from V6R6 software of carrier class devices (like Huawei NE40E, CX600), it looks much better. You have all the information at a glance:

<labnario>display elabel brief
Slot     BoardType    BarCode                 Description
================================================================================
LPU 1    CR52LPUF40A  030KWD10AB000351        LPUF-40-A
  PIC 0  CR52L2XXN0   03675210A9000134        P40-2x10GBase LAN/WAN-XFP
  PIC 1  CR52L2XXN0   03675210A9000115        P40-2x10GBase LAN/WAN-XFP
LPU 2    CR52LPUF40A  030KWD10B7000867        LPUF-40-A
  PIC 0  CR52L2XXN0   03675210B7001018        P40-2x10GBase LAN/WAN-XFP
  PIC 1  CR52L2XXN0   03675210B7001188        P40-2x10GBase LAN/WAN-XFP
LPU 3    CR52LPUKD0   030KJY10A8000126        LPUF-21-A
  PIC 0  CR52L1XX0    030GSK10A9002012
  PIC 1  CR52L1XX0    030GSK10B7001228
LPU 7    CR52LPUKD0   030KJY10B1000383        LPUF-21-A
  PIC 0  CR52L1XX0    030GSK10A2001595
  PIC 1  CR52EBGF0    030GSH10B1000971
LPU 8    CR52LPUKD0   030KJY10CC001471        LPUF-21-A
  PIC 0  CR52L1XX0    030GSK10A2001005
  PIC 1  CR52EBGF0    030GSH10B1000795
MPU 9    CR57SRU40A4  030KSR10AA000258        SRUA4-40
MPU 10   CR57SRU40A4  030KSR10AA000175        SRUA4-40
SFU 11   CR57SFU40C0  030KSY10A9000472        SFUI-40-C
SFU 12
SFU 13

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Huawei eNSP – news

We have been waiting and finally we have a simulator of Huawei firewall USG5500. They also added WDS function of WLAN and a new simulation device of WLAN – AC6605.

I am just downloading the newest version…

For those who are interested I am sending a link to it:

huawei-enterprise-network-simulation-platform

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