August 2021
Beginner to intermediate
564 pages
12h 2m
Korean
Content preview from 클라우드 네이티브를 위한 데이터 센터 네트워크 구축: 데이터 센터 네트워킹을 위한 아키텍처, 프로토콜, 도구
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87
3
장
네트워크 분리
5
.
HTTP
를 이용한 탐사
6
.
TFTP
를 이용한 탐사
탐사의 경우
ONIE
는
ping
과
ping6
를 사용해서 서브넷 로컬 주소 (
IPv4
는
255
.
255
.
255
.
255
,
IPv6
는
ff02
::
1
)로 핑
ping
을 보내서 동일 서브넷에 연결된
IP
주소 목록을 획득한다. 그다음
ONIE
는 일련의 기본 파일 이름 사양을 바탕으로 인스톨러 이미지를 찾는다. 이런 방식으로
NOS
인스톨러 이미지를 찾으면 다운로드를 시도한다. 설치에 실패하면
ONIE
은 다음 방법을
시도한다. 이런 과정을
NOS
가 설치될 때까지 영원히 반복한다.
ONIE
는
NOS
인스톨러가 필요하다면 여러 환경 변수를
NOS
를 설치하기 전에 미리 설정한
다. 이런 환경 변수는 스위치 호스트명 (동적 호스트 구성 프로토콜
dynamic
host
configuration
protocol
,
DHCP
과 같은 것을 통해 획득), 스위치 일련 번호, 공급 업체
ID
등을 포함한다.
NOS
설치 스
크립트는 이렇게 미리 설정한 변숫값을 사용해서 특정한 과정을 수행할 수 있다.
ONIE
자체도 운영체제를 설치하는 방법과 동일한 과정으로 업데이트할 수 있다. 단지
NOS
이미지가 아닌
ONIE
의 새로운 이미지를 선택하는 것만으로도 업데이트가 가능하다.
ONIE
웹사이트
4
에 정리된 예제들을 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.