2022年9月

intro-network4
What is IS-IS

What is IS-IS  IS-IS (Intermediate System to Intermediate System) is a link-state routing protocol. Anoth […]

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intro-network4
What is BGP

What is BGP  BGP is EGP (Exterior Gateway Protocol). A routing protocol that allows routing information t […]

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intro-network4
What is an AS (Autonomous System)?

What is an AS (Autonomous System)?  The Internet is vast and contains numerous networks. In order to deli […]

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intro-network4
What is OSPF

Features of OSPF  OSPF is a link-state routing protocol standardized by the IETF. Unlike EIGRP, which was […]

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intro-network4
What is Multihoming?

What is multihoming Multi-homing is a function that can distribute the load over multiple routes to the same d […]

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intro-network4
What is HSRP?

What is HSRP?  If you lose your default gateway, devices on the segment connected to that default gateway will […]

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intro-network4
What is Fast Ether Channel?

What is Fast Ether Channel?  Fast Ether Channel (FEC) is a Cisco proprietary standard that other vendors call […]

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intro-network4
What is STP/Spanning Tree Protocol?

What is STP/Spanning Tree Protocol?  When configuring a network, the network may be looped to ensure redundanc […]

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intro-network4
VLANs (trunk tagging)

VLAN (trunk tagging) What if I want to create a VLAN that spans multiple switches? For example, consider creat […]

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intro-network4
What is VLAN (virtual LAN)?

What is a VLAN (virtual LAN)?  Intelligent switches can use VLANs. Even if you say VLAN (virtual LAN), fo […]

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