{"id":5762,"date":"2018-03-05T09:23:50","date_gmt":"2018-03-05T15:23:50","guid":{"rendered":"http:\/\/gregsowell.com\/?p=5762"},"modified":"2018-03-05T09:23:50","modified_gmt":"2018-03-05T15:23:50","slug":"mikrotik-crs328-24p-4srm-24-port-poe-switch","status":"publish","type":"post","link":"https:\/\/gregsowell.com\/?p=5762","title":{"rendered":"Mikrotik CRS328-24P-4S+RM – 24 Port PoE Switch"},"content":{"rendered":"

\"\"<\/a><\/p>\n

It looks like the CRS328 is about to be a thing, and I was looking at where it fits in.<\/p>\n

Switching Features<\/h1>\n

\u2022 Non-blocking Layer 2 switching capacity
\n\u2022 16K host table
\n\u2022 IEEE 802.1Q VLAN
\n\u2022 Supports up to 4K simultaneous VLANs
\n\u2022 Port isolation
\n\u2022 Port security
\n\u2022 Broadcast storm control
\n\u2022 Port mirroring of ingress\/egress traffic
\n\u2022 STP \/ RSTP \/ MSTP
\n\u2022 Access Control List
\n\u2022 MikroTik neighbor discovery
\n\u2022 SNMP
\n\u2022 10218-byte jumbo frames support
\n\u2022 IGMP snooping
\n\u2022 IEEE 802.3ad and static link aggregation<\/p>\n

Quick Specs<\/h1>\n

\u2022 24 Gigabit Ethernet ports
\n\u2022 4 SFP+ ports
\n\u2022 RJ45 serial console port
\n\u2022 Non-Blocking throughput: 64 Gbps
\n\u2022 Switching capacity: 128 Gbps
\n\u2022 Forwarding rate: 95.2 Mpps
\n\u2022 Maximum power consumption: 44 W (without PoE
\ndevices connected)
\n\u2022 Supports PoE+ IEEE 802.3at\/af and 26 V
\nPassive PoE (per port individually selected\/auto)
\n\u2022 Temperature based fan control
\n\u2022 1U rackmount
\n\u2022 Selectable power output per port (26 \/ 48 V)<\/p>\n

This switch has an ARM32 CPU, and the hardware incorporates a lot of interesting features that can be thrown into hardware…once it is integrated into ROS. I say ROS, it has SWOS support, but nobody likes or uses SWOS. <\/p>\n

Here’s a typical MDU setup; many APs going into a switch. This switch can terminate AF\/AT compliant devices as well as standard passive PoE devices. Prior to this switch coming out I would be looking at something like the Ubiquiti EdgeSwitch 24(EdgeSwitch ES-24-250W<\/a>).
\n\"\"<\/a><\/p>\n

They both support port security(mac limiting), storm control(limit broadcast\/multicast storms), and I believe DHCP snooping(prevent rogue DHCP servers). The CRS has SFP+ ports while the ES only has SFP ports, so this gives it an advantage there. Price wise the CRS will sell for around $379 and the ES24 sells for around $400, so there’s a slight cost savings from the CRS.<\/p>\n

I don’t believe either does dynamic ARP inspection(ensuring that clients can’t spoof addresses), but I can always hold out hope.<\/p>\n

While the CRS is new(I can’t yet order one), it seems to have a bit of an edge for my scenarios(MDU environment)…especially as they begin to unlock some of those hardware features.<\/p>\n

What say you…interested in giving it a go?<\/p>\n","protected":false},"excerpt":{"rendered":"

It looks like the CRS328 is about to be a thing, and I was looking at where it fits in. Switching Features \u2022 Non-blocking\u2026<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20,6,38],"tags":[],"class_list":["post-5762","post","type-post","status-publish","format-standard","hentry","category-hardware","category-mikrotik","category-ubiquiti"],"_links":{"self":[{"href":"https:\/\/gregsowell.com\/index.php?rest_route=\/wp\/v2\/posts\/5762","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gregsowell.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gregsowell.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gregsowell.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/gregsowell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5762"}],"version-history":[{"count":2,"href":"https:\/\/gregsowell.com\/index.php?rest_route=\/wp\/v2\/posts\/5762\/revisions"}],"predecessor-version":[{"id":5766,"href":"https:\/\/gregsowell.com\/index.php?rest_route=\/wp\/v2\/posts\/5762\/revisions\/5766"}],"wp:attachment":[{"href":"https:\/\/gregsowell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5762"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gregsowell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5762"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gregsowell.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5762"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}