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Log for 電訊台

[photo](media:AgADBQADlagxG8pCeFdC99TFJujdl55m2zIABHr6hUCaleo0qXYBAAEC@telegram)
S2個橙點好似係代表唔撚用佢
我今日先知新意網做埋cloud computing...
呢邊好多油王
BlackFriday只夠錢買其中一樣,邊樣好?
anonymous poll

Pixelbook + Google Home Hub – 8
👍👍👍👍👍👍👍 57%

Sony 1000XM3 NC headphone + Google Home Hub – 6
👍👍👍👍👍 43%

👥 14 people voted so far.
STP係default自己會做
我地可以做嘅係改priority或者做protection
No ar, they sell data center only. I`m using Mega-I facility
What they are selling is "China Gateway" "Cloud Gateway"
The concept is you colo at their DC, you can connect to China or Cloud
我就嚇親,今日上堂班友講新意網有cloud computing,明明得colo
Where 上堂
192.168.100.2 4 134098 0 1 0 0 0 never Idle
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
both
借錢買
[photo](media:AgADBQADnagxG8pCgFdU-wheOp5r2Tln2zIABHWkboZdckc5eXcBAAEC@telegram)
做咩玩得咁複雜
技術探究
仲有分架
STP RSTP MSTP
Cisco Proprietary: Per-VLAN STP (PVST), PVST+, Rapid PVST, Rapid PVST+
有人輕鐵俾人打荷包
可以熄
spanning-tree portfast
U?
咁停駛?
not me
係囉好戇鳩
....
係鐵裏面比人偷野佢走唔甩架喎
除非係輕鐵站(唔係車廂入面)
睇個款應該係省港旗兵
Per VLan STP can do for load balance traffic
多謝 Licson 幫我做左個test
解決左BGP MTU issue
有無set root bridge ?
BPDU root
HKU
咩堂?
Telecom policy
I see
[photo](media:AgADBQADpagxG8pCgFcyLEwbGdESYWmf1jIABHEFqUMnmRqBpScEAAEC@telegram)
我想問條數啱唔啱😂
simultaneously
學下呢個字
對唔住
[photo](media:AgADBQADp6gxG8pCgFexoY6LiGP0DzVs2zIABN7GPQ_oYySRYnwBAAEC@telegram)
有錢
N5K 好大部……
冇錢
不如你送比我
屈機
為慶祝router 成功deploy, 今日飲一飲佢
[photo](media:AgADBQADdagxGwlUeVdVmjQVI83d7Lyh1jIABJno1pz6CW7dVyYEAAEC@telegram)
WAN optimization device needed
買條大d既水喉可能仲平過呢部野
法國波爾多
Pipe is monthly fee, device is one time invest
咩Account? Hosting 定VM? 是咪過左期?
hosting
係過咗期😂
如果係公司部pc打command知唔知佢個network structure嫁?
tracery route
全自動架bor,過左期就自動Cut,個系統唔識認人呢⋯⋯
我剛剛訓醒痾緊屎
你唔可以幫我renew咩?
點解唔痾左尿先
唔知Delete左未bor,比d資料黎我陣間睇。
[sticker](media:AAQFABOYZrMyAAQ3-5Dj7UF5p5kQAAIC@telegram)
[sticker](media:AAQEABOuwrsZAAR4ftCCGeL0Y0dzAAIC@telegram)
c000007-1
哦,呢一類呀⋯⋯
[photo](media:AgADBQADdKgxGwlUgVcRBpp2pkJdYD1S2zIABME4FmwTC502AnsBAAEC@telegram)
你係咪被人kick左?
美食谷
無呀
我少出聲
[photo](media:AgADBQADr6gxG8pCgFfOE2UTuvRtZ_hh2zIABBXc-uAZImg4LnYBAAEC@telegram)
做咩貓奴佢地話你 on 9 ?
邊個貓奴
try root bridge
我手痕執出黎啫,未得閒認真玩
公司D booking去到十二月中
HY++ (我用手食榴槤比人問係咪Caveman)
哦。。。我不嬲都係on9架啦(佢覺得
白۫ 彌. ✁ ◊°‡ 𝙿𝚒𝚜𝚌𝚎𝚜
哦。。。佢唔抵得我man
你都知shitromi女著開
PVST Load Balancing
You can try ISL for trunk link
no
802.1q
ISL 多左層 encap
[photo](media:AgADBQADdagxGwlUgVeJKAUHBYm6bnSv1jIABM33WZOr9c5IOyUEAAEC@telegram)
More bytes in header ?
yes
But will it effect to the trunk link ?
Yes
Lower throughput
.1q simply adds a new field in the existing header
.1q is good in production.....
But can play ISL in package tracer
You know what, I`m going to setup Trunk link between my routers.
And form MPLS core
just one cmd to enable MPLS
mpls ip
P(config)#interface fastEthernet 0/1
P(config-if)#mpls ip
But thank you very much again to @licson today help.
係喎 @soruly 可以考慮下
呢部慳電好多
仲附帶 40Gbps 頭
唔洗咁多頭
Hmm
40G is it a standard ?
還好啦 夠用架
Yes
用 QSFP+ 頭
40G 好似冇大頭
得細頭
100G 反而係有大頭先,後尾先出細頭
X2 ?
100G 大頭叫 CFP
細頭叫 QSFP28
QSFP28
CFP
I think depends on which model ?
Some is QSFP28 , Some is CFP
[photo](media:AgADBQADtqgxG8pCgFf0Ilck726uxs-b1jIABJ5Ph2nRwZuqjSkEAAEC@telegram)
N9K can use 100G
買唔起
[photo](media:AgADBQADt6gxG8pCgFepqLMh2nFyoqNZ2zIABKcIVxnK4W97AXkBAAEC@telegram)
Not so expensive ja wor
用多好多電
N3K 唔食電
N5K N7K N9K 就開始嚟料
Looks like Cisco Nexus 9396PX is the best for 100G port
and cheap
N3K have 100G port ?
有啲有
不過應該係 upstream port
有無SAN行100G ?
ISCSI
自己搭咪有
😂😂
買部N9K 玩下
要行100G NIC, HDD 又要有 100Gbps speed
行100隻SSD RAID 10 可能有機會
NVMe
你咪唔洗咁多隻
點駁?
U.2 NVMe SSD + Backplane + HBA
全程都會係 PCIe
Backplane 點搞?
Supermicro 嗰啲
佢地有
同識駁...
又s要tudy
CPU 做 RAID
或者你買部 HP ProLiant DL360 Gen9 攞
有 NVMe backplane
Disk Speed 要上 100G wor
Dont know ok or not
一隻 NVMe 通常都有 2GB/s read
2GB is very good result.
可否行NVMe RAID ?
可以
要 100Gbps 你其實十隻做 RAID 10 都過左
我Synology行12 x SSD , 只1有300MB
因為 CPU 做 software RAID
Not hardware RAID is faster ?
呢個先係
RAID 幾
加埋 Synology 每次用親 IO perf 都好慢
我屋企有部機都係 Software RAID,都係冇咁快
10
呢度d學霸
我搵日要出深水步買DB9公公
我發覺tech人要上mgnt真係有d難
director/president果堆 著重係點搵錢
技術階層係中層已經bottlrneck
未必
[photo](media:AgADBQADgKgxGwlUgVcmM4zVv5nA1vFm3jIABMzja-V8ifVwiXYAAgI@telegram)
要做埋如何搵錢果part
Business Decision
然後再叫樓下班worker做野
3萬蚊一隻?!
Yes
[photo](media:AgADBQADFKgxG_IHgVdo-muLomIUMjZf2zIABMx8oF02LqQJeX0BAAEC@telegram)
AutoCAD?
WiFi router I guess
邊個叫我個名
MINO wifi
話說,set cisco d野,簡單既set法其實都幾canned
一個office既野,一堆script可以set好曬
Telnet script
企業要fast deploy
cmdlines > telnet router
剛剛係度試緊PAT
又學成左一樣
Port forwarding 就大概 = static NAT
其實有PAT有DHCP 就用一部普通router一樣
呢兩部野都係fast deployable既
話說L3 switch係咪都比唔上ISR呢
唔suppose由L3 switch同ISP modem傾計
Why not
好似怪怪地啫
ISR就好似係Router + 細少少既switch
L3 Switch 係基本 routing
進階 routing 或者 QoS 嗰啲
都係要返部 router
家用router都係DHCP入,派下DHCP IP,port forwarding就算
L3S做唔做到?
ISR就除左routing做埋一開八之類分喉既工作
睇 IOS 版本
NAT 未必得
但係 Dynamic Routing 嘅話,L3 Switch 基本都得
我求先係PT試兩隻router用RIP
由得佢自己玩
router rip
ver 2
然後佢就自己慢慢學
下一步要學encapsulation dot1q
基本上就係狂操同一類野,打打下就熟
好有趣
switchport mode trunk
switchport trunk en do1
原來cisco online d doc都幾多野睇
[photo](media:AgADBQADg6gxGwlUgVdg_CPKivbQzTZZ2zIABFVWwm5XXXt9IX4BAAEC@telegram)
睇IOS
[photo](media:AgADBQADhKgxGwlUgVcgQu2XMZym1mmv1jIABNIh1iVqvlsrtiEEAAEC@telegram)
你上面部 Switch 係 10G?
有部4900
但會搬落黎
我以為你會直接直線駁
而家中間有L2
要上淘寶買d索帶先
扎完有位寫字果種
label 機好啲
真係架
我有啦
索帶個隻一多線就好易刮到手
依家試下RIPv2先
無記錯既RIP好似淨係得15hops
講真而家一間公司點會有咁多router
咩都搏晒出去ISP
最多咪行吓VPN
Cogent
[photo](media:AgADBQADhqgxGzK3iVdSdnb59QABwWsZaNsyAAQV3boH91yTDyyAAQABAg@telegram)
Just for fun
其實係架
Cogent 做咩
一條公喉接一隻大router
行親 Cogent 無返二十個 hop 都唔係 Cogent
然後樓下全部都係switch
除非好似機樓咁,可能一層一隻router
RIP 係Intrenet
上游係一隻core switch
我知啊
就算客,都係一隻ISR入屋就算
不過老實講睇你點 set 啫
我就麻麻哋 RIP
No, GPON
HKBN 以前就用switch
GPON OLT 上一層都要駁 Switch
😛
ONU head end
一隻
ISR 係咪1900?
不如我試下玩rip
7600-6500
Redistribute
我地公司就SRX240/340
依家賣落西大多數都係
Rdf🤗🍾️🤔🤔🤔🎊🎊🥫🚡🚖🚘🚋🚈🚅😔🇩🇪🕢🕢🕡🕗⚪️🔘🔘🔘🔘🔘🔘🔘🔘🔘🔘🔘🔘🔘🔘🔘〰️🔘🔘🔘🔘🔘🔘🔘🔘🔘🔘🔘⚪️⚪️⚪️⚪️⚪️⚫️⚫️⚫️🔴🔴🔵🔵🔺🔺🔺🔻🔻🔸🔸🔹🔹🔔🔔🔕📣🔷🔶◾️◼️🇾🇪🇾🇪🇾🇪🇨🇫🇭🇷🇭🇷🇱🇷🇧🇿🇱🇦🇧🇿🇨🇻🇪🇸🇨🇻🇱🇦🉑☣️🚷㊙️🈷️⛔️📛☣️🛑🆑🔞🔞🔞🔞🚱🚱📵🚱🚳🚭🚭🚭🆎🅾️📛📛❗️🛑🈯️🛑🛑🚫📣🎦🔡gvsf dbsbdbbdbdbsh dsn
Non Cisco
Customer side?