很多人会对博客的名字心存疑惑,其实之所以取名“屎壳”,完全是一位同学误打误撞,把思科听成“屎壳”所来:)
博客上每一篇的内容,看上去都让人感觉艰涩难懂,但还是希望能对大家有所帮助。
CCIE
一切顺心
蓝色亚平宁
周志广
相识是缘
新浪博客遇到的第一个伙计
想象不到
别看错噢
独独加油
晚晴
Tank
lenvo's
思科官方网站(英文)
思科英文官方论坛
思科中国官方网站
思科中国官方论坛
思科的"大英博物馆"
思科工具集锦
IOS下载、排错工具集
思科IOS特性查询工具
根据特性查询对应产品
路由、交换、安全、无线设备
思科硬件配件选型工具
思科产品防伪查询
THETA
著名网站
著名网站
著名网站
|
标签:it |
分类:~~~ ALL IN ONE ~~~ |
ubiquitous
gadget
we have almost come to take disk drives for granted as ubiquitous gadget that are redily available at volume discounts.
subassembly
platter
actuator
spindle
servo
rigid
substrate
microscopical 显微镜的
alloy
magnesium
vibration
|
标签:it |
分类:~~~ ALL IN ONE ~~~ |
proximity
volatile
peripheral 不重要的,外围,外围设备
traction
convoluted 旋绕的,费解的
HBA
imprint
perplex
primitive
subroutine 子程序
vigorous
smack
intricate
compart
|
标签:it |
分类:~~~ ALL IN ONE ~~~ |
DAS: direct attached storage
NAS: network attached storage
SAN: storage area network
SCSI: small computer system interface
ATA: advanced technology attachement
|
标签:it |
分类:~~~ Switching ~~~ |
主机端口的spanning-tree portfast经常被我们忽视,它不仅仅起到加速端口UP速度的目的,对二层网络稳定性也有很重要的作用。
主机端口(以后称host port)的UP,被RSTP视为一种TC(拓扑变化),继而引起MAC表项刷新(删除并重新学习),在重新学习过程中,所有二层单播数据包将被视为未知单播泛洪处理。
最重要的是MAC表项刷新并不只对本设备做刷新,而是对整个二层逻辑网络全部刷新。
也就是如果你在一台二层接入交换机上,接入了一台主机,将触发所有处于同一VLAN内的所有交换机的MAC表项刷新。整个二层网络振荡。
所以建议所有主机端口host port,启用spanning-tree portfast
|
标签:it |
分类:~~~ 就一大水坑 ~~~ |
rationale
perspective 观点看法, view points, thinking
outset
murky
neanderthal 穴居人的
swamp
reservoirs
cunning
aroma
pallet
fermented
yeast
cholesterol 胆固醇
diabetes
venison
oxidation&nbs
|
标签:it |
分类:~~~ Switching ~~~ |
Link State Tracking in Blade Deployments
刀片服务器两个NIC接口可互为备份,通过teaming实现切换,但teaming只能检测NIC接口或其直连链路状态。
如果刀片内置交换机模块(CISCO)上行链路DOWN,则NIC的切换无法进行。
所以我们需要在交换模块上设置link state tracking配合teaming。
具体配置如下:
link state track 1
int port-channel 1
int g0/1
int g0/2
int g0/10
&n
|
标签:it |
分类:~~~ ALL IN ONE ~~~ |
Version
Identification ! Flags ! Fragmentation Offset
Time to Live ! Protocol ! Header Checksum
Source IP Address
Destination IP Address
Options(if any) ! Padding
Data ...
|
标签:it |
分类:~~~ Solaris ~~~ |
The first choice:
vi /etc/inittab
modify the lastline's number '5' to '3'
id:5:initdefault:
run level:
0: halt
1: single user mode
2: multiuser mode, no network(NFS)
3: multiuser mode, have network(NFS)
4: reservable
5: multiuser mode, network(NFS), graphic(X11)
6: restart
|
标签:教育 |
分类:~~~ 就一大水坑 ~~~ |
for
and
nor
but
or
yet
so
both ... and ...
not only ... but also
either ... or ...
neighther ... nor ...
Both Jhon and George like footable.
You can either stay or go.
He is neither handsome nor rich.
It not only rained but also snowed.
He
He is neither in his office nor in the meeting room.
You will find him either reading a book or sleeping.
She is not only pretty but also intelligent.
He is both rich and generous.
I can't decide whether he a brave or stupid.
He likes both watching movies and listening to music.
Whenever you see him he is either talking or laughing.
Neither you nor i know the answer to that question.
He isn't sure whether to marry Flona or Lee-Anne.
Not only
|
标签:教育 |
from ... to ...
from ...
I
I
I
until ...
He
stayed
I