#Cisco mac address table clearance how to

This also applies to Class A and Class B but raising 2 to unmasked bits of more than 8 is quite difficult to calculate mentally. Your broadcast address is 1 less than the next network address like. This will be your block size thus your 1st address will be. To identify the network address, find the decimal eqivalent of the octet. of hosts = (2^4)-2 = 14 because the network and broadcast address is not used. of subnets = 2^4 = 16 if ip subnet 0 is not allowed but you have to remove the first and last subnet giving you a total of 14 subnets. If you're given a /28, identify the masked bits (1) and unmasked bits (0). Rule #6: Homework / Educational Questions must display effort.The Sybex CCNA reviewer is a good book. Rule #3: No BlogSpam / Traffic re-direction. Rule #2: No Certification Brain Dumps / Cheating. r/NetworkingJobs /r/sysadmin /r/ITCareerQuestions /r/CSCareerQuestions /r/ccna /r/juniper /r/jncia /r/ccnp /r/jncis /r/ccdp /r/jncip /r/ccie /r/ccde /r/cisco /r/jncie /r/HomeNetworking /r/TechSupport /r/Network /r/ipv6 /r/networkautomation /r/outages Related IRC Channels Topics that may affect one locale does not contribute enterprise networking discussions.Political posts tend to attract the wrong crowd and overly aggressive vocalization.This subreddit invites redditors from all around the globe to discuss enterprise networking.Show us how you think you should solve those issues, and we will validate or offer enhancement to your initial attempt.Don't ask us what we would buy for a given project./r/itcareerquestions /r/ccna and /r/ccent are all available for early-career discussions.This sub-reddit is dedicated to higher-level, more senior networking topics.

#Cisco mac address table clearance how to

Please review How to ask intelligent questions to avoid this issue.Professionals research & troubleshoot before they ask others for help. We expect our members to treat each other as fellow professionals.Any post that fails to display a minimal level of effort prior to asking for help is at risk of being Locked or Deleted.Surveys may be approved with the moderators' permission.But harassing members to check out your content will not be tolerated. You may share a URL to a blog that answers questions already in discussion. Directing our members to resources elsewhere is closely monitored.This sub prefers to share knowledge within the sub community.These posts will be deleted without mercy.These topics pollute our industry and devalue the hard work of others.Home Lab hardware discussions, as in 'what do I buy for a homelab' are not permitted.Home Lab discussions, as a tool for learning & certifications are welcomed.Home Networks, even complex ones are best discussed elsewhere like /r/homenetworking.We aren't here to troubleshoot your 'advanced' video game latency issues. If you need to know the port on a Cisco switch to which a particular host is connected and know the media access control (MAC) address, you can determine the port to which it connects using a show mac address-table address command.Topics regarding senior-level networking career progression are permitted.This topic has been discussed at length, please use the search feature. Topics asking for information about getting into the networking field will be removed.Networking Career Topics are allowed with following guidelines: No Homework Topics without detailed, and specific questions.Enterprise /Data Center /SP /Business networking related.New Visitors are encouraged to read our wiki.Д®nterprise & Business Networking topics such as:Д®ducational Topics & Questions are allowed with following guidelines: Routers, Switches, Firewalls and other Data Networking infrastructure discussions welcomed.