However, the OSI 7-layer model is still widely used, as it helps visualize and communicate how networks operate, and helps isolate and troubleshoot networking problems. The modern Internet is not based on OSI, but on the simpler TCP/IP model. It was the first standard model for network communications, adopted by all major computer and telecommunication companies in the early 1980s Kindle Edition.The Open Systems Interconnection (OSI) model describes seven layers that computer systems use to communicate over a network. All-in-One CCIE V5 Written Exam Guide (Kindle Locations 1468-1471). Show mac address-table aging-time – Displays the aging time in all VLANs or the specified VLANĪdam, Paul (). Show mac address-table address – Displays MAC address table information for the specified MAC address. You can display the MAC address table by using one or more of the privileged EXEC commands. You can disable MAC address learning on a single VLAN ID from 1 to 4094 (for example, no mac address-table learning vlan 229) or a range of VLAN IDs, separated by a hyphen or comma (for example, no mac address-table learning vlan 1-100, 16). Disabling MAC address learning on an interface or VLAN could cause flooding in the network. Before you disable MAC address learning, be sure that you are familiar with the overall environment which includes network topology and the router system configuration. You can control MAC address learning on an interface or VLAN to manage the available MAC address table space. By default, MAC address learning is enabled on all interfaces and VLANs and MAC address aging is set to 300 seconds on a Cisco switch.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |