How to upgrade eXR by one cmd “install replaced” | NCS5500

9月 29th, 2019 No Comments »

Awesome upgrade cmd for eXR, that will help customer simplify upgrade procedure and do upgrade automation! Feature release from 652. Just tested and summarized.

I summarized normal upgrade eXR version by install add/prepare/active at former: Upgrade/Install Packages in eXR. For the article, will summary how to upgrade by install replaced.

“Install replaced” is a new cmd that help customer upgrade only by one cmd, don’t need to add/prepare/active steps, that only support by GISO. What is GISO? That is an image bundle, customer can flexibly customize the image, e.g only bundle: ISIS rpm + mini iso + k9 rpm + configuration to one GISO, more GISO information, please check CCO Doc: Flexible Packaging Configuration Guide for Cisco NCS 5500 Series Routers

PS: “Install replaced” that will not affect running configuration, and auto removes inactive rpm, and commit.

Build GISO

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CCIE SP, 学习笔记, 常用资料 Upgrade,XR

Upgrade/Install Packages in eXR

7月 17th, 2019 No Comments »

Seperate RPM Pacakage

Check now version

Due to now version include multi packages, so you must include those packages when you upgrade:

RP/0/RP0/CPU0:R31#show ins ac sum
Fri Mar 29 02:35:01.477 UTC
    Active Packages: 9
        ncs5500-xr-6.6.1 version=6.6.1 [Boot image]
        ncs5500-isis-2.1.0.0-r661
        ncs5500-li-1.0.0.0-r661
        ncs5500-mcast-2.1.0.0-r661
        ncs5500-mpls-2.1.0.0-r661
        ncs5500-mpls-te-rsvp-3.1.0.0-r661
        ncs5500-ospf-2.0.0.0-r661
        ncs5500-mgbl-3.0.0.0-r661
        ncs5500-k9sec-3.1.0.0-r661

Check Storage Space

Whether harddisk/disk have enough space, please remove unuse file and tem file in disk/harddisk

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CCIE SP, 学习笔记, 常用资料 Upgrade,XR

How to sniffer Dummy VLAN on L2VPN ?

12月 27th, 2014 No Comments »

什么是dummy vlan？

由于EVC平台在入端口可以通过rewrite命令剥离VLAN tag，这样导致在PW中没有任何tag，在Type 4时会有问题，两边VLAN的QOS无法传递给对端，所以就有了这个所谓的dummy vlan，它不是一个真正的VLAN，他只是传递一些QOS字段并且占一个位。那么dummy VLAN长什么样？其实大鹏之前的文章里已经详细介绍了EVC的各种行为，我这里只是介绍抓dummy VLAN的“心路历程”以及dummy VLAN的“样子”~

测试Topology:

起始测试环境为VPLS BGP auto discovery + LDP Sig，在76的入向抓包

测试步骤

1. 默认Type 5，在CE1 ping 带cos 5，ASR9k-1在AC上不配置rewrite，透传的VLAN是否带着802.1p？根据抓包信息，正常带着802.1p，详细看“bgp-ldp-vlan-cos5.pcapng”；另外有个疑问，既然type 5支持VLAN透传，为什么还要Type 4？答案请看文章结束部分
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CCIE SP, 学习笔记 ASR9k,IOX,L2VPN