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highlights and lowlights of the daily business of network engineers

highlights and lowlights of the daily business of network engineers
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  • CCIEW Notizen
    • 1.0 L2/L3
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Tag: 12. April 2015

STP Portfast

12. April 201512. April 2015 Samuel Heinrich

Spanning-tree Portfast ist auch eins der Features das sicherlich jeder kennt. Im wesentlichen überspringt es beim hochnehmen eines Ports die Listening (15s) und Learning (15s) Phase und geht direkt in den Forward (oder blocking!) mode. Ohne Portfast: CAT2(config)#int fa0/12 CAT2(config-if)#no spanning-tree… Read moreSTP Portfast

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STP Basics

12. April 201512. April 2015 Samuel Heinrich

 Wissenswertes: Lower is always better ( Priority, Cost, Root Election, MAC Adresse etc..) 0 ist die tiefste Priority und 32768 die höchste (Standard) Lower is always better ( Priority, Cost, Root Election, MAC Adresse etc..) Konfigurierbare Priorities: 0, 4096, 8192,… Read moreSTP Basics

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VTP Basics

12. April 201512. April 2015 Samuel Heinrich

Modes: Server Client Transparent Off Output verstehen: CAT2#show vtp status VTP Version capable : 1 to 3 VTP version running : 1 VTP Domain Name pruning Mode : Disabled VTP Traps Generation : Disabled Device ID : 001b.54a5.6c00 Configuration last… Read moreVTP Basics

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CDP Basics

12. April 201512. April 2015 Samuel Heinrich

CDP ist eigentlich recht simpel und straight forward, dennoch gibts 2-3 Details die man wissen sollte. CDP ist per default auf allen Ports aktiviert.  Status prüfen: CAT1#show cdp Global CDP information: Sending CDP packets every 60 seconds Sending a holdtime… Read moreCDP Basics

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  • CCIEW Notizen (31)
    • 1.0 L2/L3 (18)
    • 2.0 Infrastructure Services (4)
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