Difference between revisions of "CCDA/Enterprise LAN design"
From Teknologisk videncenter
< CCDA
m (New page: = LAN media = *[http://en.wikipedia.org/wiki/Ethernet#Varieties of Ethernet Varieties of Ethernet] = Best Pratice for Hierarchical Layers = ==Access Lag== *Begræns VLAN til rackskabet...) |
m (→Access Lag) |
||
| Line 13: | Line 13: | ||
<source lang=cli> | <source lang=cli> | ||
A1(config-if)#<input>do show run int fa0/1</input> | A1(config-if)#<input>do show run int fa0/1</input> | ||
| − | |||
| − | |||
interface FastEthernet0/1 | interface FastEthernet0/1 | ||
description Accessport USER | description Accessport USER | ||
| Line 24: | Line 22: | ||
spanning-tree portfast will be enabled | spanning-tree portfast will be enabled | ||
channel group will be disabled | channel group will be disabled | ||
| − | |||
A1(config-if)#<input>do show run int fa0/1</input> | A1(config-if)#<input>do show run int fa0/1</input> | ||
interface FastEthernet0/1 | interface FastEthernet0/1 | ||
| Line 33: | Line 30: | ||
end | end | ||
</source> | </source> | ||
| + | |||
== Distribution lag == | == Distribution lag == | ||
{{#css: | {{#css: | ||
Revision as of 14:41, 12 January 2010
LAN media
Best Pratice for Hierarchical Layers
Access Lag
- Begræns VLAN til rackskabet (Ikke End-to-End)
- Brug RPVST+ hvis Spanning Tree skal anvendes
- Sæt VLAN Dynamic Trunking Protocol (DTP) til Desirable/Diserable med forhandling slået fra.
- Prune VLAN manuelt for at forhindre unødvendige Broadcast.
- Brug VTP transparant mode, da der ikke er brug for en fælles VLAN database.
- Disable Trunking på access porte. Giver mere sikkerhed og får Portfast til at fungere hurtigere.
- Overvej at anvende routning i Access Laget for at få hurtig konvergens og Load-Balancing.
- Brug switchport host kommandoen på server og bruger porte for at
A1(config-if)#<input>do show run int fa0/1</input>
interface FastEthernet0/1
description Accessport USER
no ip address
end
A1(config-if)#<input>switchport host</input>
switchport mode will be set to access
spanning-tree portfast will be enabled
channel group will be disabled
A1(config-if)#<input>do show run int fa0/1</input>
interface FastEthernet0/1
description Accessport USER
<notice>switchport mode access</notice>
no ip address
<notice>spanning-tree portfast</notice>
end