Cisco Catalyst switch C1300-48T-4G - REFRESH 
 CISCO REFRESH jsou repasované produkty, které společnost CISCO dodává s certifikací kvality, zárukou a servisní podporou odpovídající ekvivalentnímu novému produktu 
 
Cisco Catalyst řady 1300 jsou managovatelné switche Gigabit Ethernet Layer 3 podnikové třídy určené pro malé a střední podniky a pobočky. Tyto jednoduché, flexibilní a bezpečné switche jsou ideální pro nasazení mimo rozvodnou skříň. Řada Catalyst 1300 pracuje na přizpůsobeném softwaru operačního systému Linux s intuitivním grafickým rozhraním, který zjednodušuje nastavení sítě a pokročilými funkcemi, které urychlují digitální transformaci, zatímco všudypřítomné zabezpečení chrání kritické obchodní transakce. Přepínače řady 1300 poskytují ideální kombinaci cenové dostupnosti a možností pro malé a střední podniky a pomáhají vám vytvořit efektivnější a lépe propojenou pracovní sílu. 
 
 Stránky produktu:   C1300-48T-4G  
 
 
 
   Performance     Switching capacity and forwarding rate (All switches are wire-speed and nonblocking) 	 
  Capacity in millions of packets per second (mpps) (64-byte packets) 	 77.38  
  Switching capacity in gigabits per second (Gbps) 	 104.0  
   Layer 2 switching     Spanning Tree Protocol (STP) 	 Standard 802.1d spanning tree support
 	Fast convergence using 802.1w (Rapid Spanning Tree Protocol [RSTP]), enabled by default
 	Multiple spanning tree instances using 802.1s (MSTP); 8 instances are supported
 	Per-VLAN Spanning Tree Plus (PVST+); 126 instances are supported
 	Rapid PVST+ (RPVST+); 126 instances are supported  
  Port grouping/link aggregation 	 Support for IEEE 802.3ad Link Aggregation Control Protocol (LACP)
 	Up to 8 groups
 	Up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad link aggregation  
  VLAN 	 Support for up to 4093 VLANs simultaneously
 	Port-based and 802.1Q tag-based VLANs, MAC-based VLAN, protocol-based VLAN, IP subnet-based VLAN
 	Management VLAN
 	Private VLAN with promiscuous, isolated, and community port
 	Private VLAN Edge (PVE), also known as protected ports, with multiple uplinks Guest VLAN, unauthenticated VLAN
 	Dynamic VLAN assignment via RADIUS server along with 802.1X client authentication Customer premises equipment (CPE) VLAN
 	Auto surveillance VLAN (ASV)  
  Voice VLAN 	 Voice traffic is automatically assigned to a voice-specific VLAN and treated with appropriate levels of QoS. Voice Services Discovery Protocol (VSDP) delivers networkwide zero-touch deployment of voice endpoints and call control devices  
  Multicast TV VLAN 	 Multicast TV VLAN allows the single multicast VLAN to be shared in the network while subscribers remain in separate VLANs. This feature is also known as Multicast VLAN Registration (MVR)  
  VLAN translation 	 Support for VLAN one-to-one mapping, in which customer VLANs (C-VLANs) on an edge interface are mapped to service provider VLANs (S-VLANs), and the original C-VLAN tags are replaced by the specified S-VLAN  
  Q-in-Q 	 VLANs transparently cross a service provider network while isolating traffic among customers  
  Selective Q-in-Q 	 Selective Q-in-Q is an enhancement to the basic Q-in-Q feature and provides, per edge interface, multiple mappings of different C-VLANs to separate S-VLANs
 	Selective Q-in-Q also allows configuring of the Ethertype (Tag Protocol Identifier [TPID]) of the S-VLAN tag
 	Layer 2 protocol tunneling over Q-in-Q is also supported  
  Generic VLAN Registration Protocol (GVRP)/Generic Attribute Registration Protocol (GARP) 	 GVRP and GARP enable automatic propagation and configuration of VLANs in a bridged domain  
  Unidirectional Link 	 UDLD monitors physical connections to detect unidirectional links caused by incorrect  
  Detection (UDLD) 	 wiring or cable/port faults to prevent forwarding loops and blackholing of traffic in switched networks  
  DHCP relay at Layer 2 	 Relay of DHCP traffic to a DHCP server in a different VLAN; works with DHCP Option 82  
  Internet Group Management Protocol (IGMP) versions 1, 2, and 3 snooping 	 IGMP limits bandwidth-intensive multicast traffic to only the requesters; it supports 2000 multicast groups (source-specific multicasting is also supported)  
  IGMP querier 	 IGMP querier is used to support a Layer 2 multicast domain of snooping switches in the absence of a multicast router  
  IGMP proxy 	 The IGMP proxy provides a mechanism for multicast forwarding based on IGMP membership information without the need for more complicated multicast routing protocols  
  Head-of-Line (HOL) blocking 	 HOL blocking prevention  
  Loopback detection 	 Loopback detection provides protection against loops by transmitting loop protocol packets out of ports on which loop protection has been enabled. It operates independently of STP  
   Layer 3     IPv4 routing 	 Wire-speed routing of IPv4 packets
 	Up to 990 static routes and up to 128 IP interfaces  
  IPv6 routing 	 Wire-speed routing of IPv6 packets  
  Layer 3 interface 	 Configuration of a Layer 3 interface on a physical port, LAG, VLAN interface, or loopback interface  
  Classless Interdomain Routing (CIDR) 	 Support for CIDR  
  Routing Information Protocol (RIP) v2 	 Support for RIP v2 for dynamic routing  
  Policy-Based Routing (PBR) 	 Flexible routing control to direct packets to a different next hop based on an IPv4 or IPv6 Access Control List (ACL)  
  DHCP server 	 Switch functions as an IPv4 DHCP server, serving IP addresses for multiple DHCP pools or scopes
 	Support for DHCP options  
  DHCP relay at Layer 3 	 Relay of DHCP traffic across IP domains  
  User Datagram Protocol (UDP) relay 	 Relay of broadcast information across Layer 3 domains for application discovery or relaying of Bootstrap Protocol (BOOTP)/DHCP packets  
   Security     Secure Shell (SSH) Protocol 	 SSH is a secure replacement for Telnet traffic. Secure Copy Protocol (SCP) also uses SSH. SSH v1 and v2 are supported  
  Secure Sockets Layer (SSL)	SSL support: Encrypts all HTTPS traffic, allowing highly secure access to the browser-based management GUI in the switch  
  IEEE 802.1X (authenticator role) 	 802.1X: RADIUS authentication and accounting, MD5 hash, guest VLAN, unauthenticated VLAN, single/multiple host mode, and single/multiple sessions
 	Supports time-based 802.1X, dynamic VLAN assignment, and MAC authentication  
  IEEE 802.1X supplicant 	 A switch can be configured to act as a supplicant to another switch. This enables extended secure access in areas outside the wiring closet (such as conference rooms)  
  Web-based authentication 	 Web-based authentication provides network admission control through a web browser to any host devices and operating systems  
  STP Bridge Protocol Data Unit (BPDU) Guard 	 A security mechanism to protect the network from invalid configurations. A port enabled for BPDU Guard is shut down if a BPDU message is received on that port. This avoids accidental topology loops  
  STP Root Guard 	 Prevents edge devices not in the network administrator’s control from becoming STP root nodes  
  STP loopback guard 	 Provides additional protection against Layer 2 forwarding loops (STP loops)  
  DHCP snooping 	 Filters out DHCP messages with unregistered IP addresses and/or from unexpected or untrusted interfaces. This prevents rogue devices from behaving as DHCP servers  
  IP Source Guard (IPSG) 	 When IPSG is enabled at a port, the switch filters out IP packets received from the port if the source IP addresses of the packets have not been statically configured or dynamically learned from DHCP snooping. This prevents IP address spoofing  
  Dynamic ARP Inspection (DAI) 	 The switch discards ARP packets from a port if there are no static or dynamic IP/MAC bindings or if there is a discrepancy between the source or destination addresses in the ARP packet. This prevents man-in-the-middle attacks  
  IP/MAC/port binding (IPMB) 	 The preceding features (DHCP snooping, IPSG, and DAI) work together