Cisco Catalyst WS-C3850-24S-S is the next generation enterprise-level stackable switch that is integrated with 24 SFP ports in IP base feature set. WS-C3850-24S-S supports up to 1K VLANs and delivers comprehensive layer 2 switching and limited layer 3 capabilities by offering the feasible solution for access layer or distribution layer.
Table 1 shows the Quick Specs of the WS-C3850-24S-S.
24 x SFP ports
Network SFP Uplink Module Selection
Network management Interface
- Ethernet management port: RJ-45 connectors, 4-pair Cat-5 UTP cabling
- Management console port: RJ-45-to-DB9 cable for PC connections
Available PoE Power
Maximum stacking number
Number of AP per switch/stack
Number of wireless clients per switch/stack
44.5 cm x 45 cm x 4.45 cm
1 year warranty
Figure 1 shows the front panel of the Cisco WS-C3850-24S-S with installed network module. The module must purchase separately.
·There are 24 × 10/100/1000 SFP Optical ports on the front panel.
·The switch supports one hot-swappable network module that provides uplink ports to connect to other devices. The switch should only be operated with either a network module or a blank module installed.
Figure 2 shows the back panel of the Cisco WS-C3850-24S-S.
①Ground connector ⑤Power supply modules
②CONSOLE (RJ-45 console port) ⑥Fan module
③StackWise port connector ⑦MGMT port
④StackPower connector ⑧Reset Button
Figure 3 shows the StackWise-480 and StackPower connectors.
In order to stacking with LAN base feature set, WS-C3850-24S-S needs to configure in LAN base mode from CLI.
Table 2 shows some recommended accessories of WS-C3850-24S-S.
Cisco 3850 Series 4 x 1GE Network Module
Cisco 3850 Series 2 x 10GE Network Module
C3850-24 IP Base to IP Services Electronic RTU License
Cisco 3850 Series Power Supply 350W AC
Cisco 3850 Series Secondary Power Supply 350W AC Config 1 Secondary Power Supply
Cisco StackWise-480 50cm stacking cable for Cisco Catalyst 3850 series switch
Cisco StackWise-480 1m stacking cable for Cisco Catalyst 3850 series switch
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Cisco catalyst 3850-24S-S model info: WS-C3850-24S-S enclosure type Rack-mountable - 1U Ports 24 x SFP ports Network management Interface ● Ethernet management port: RJ-45 connectors, 4-pair Cat-5 UTP cabling
● Management console port: RJ-45-to-DB9 cable for PC connections
Available PoE Power None Switching Capacity 92Gbps Maximum stacking number 9 Stack Bandwidth 480Gbps Forwarding Performance 68.4Mpps FNF entries 48,000 flows Maximum VLANs IDs 1,000 MAC Address Table Size 32K CPU Multicore CPU RAM 4 G Flash Memory 2 G Wireless Number of AP per switch/stack 50 Number of wireless clients per switch/stack 2000 Total number of WLANs per switch 64 Wireless bandwidth per switch up to 20Gbps Supported Aironet AP series 3600, 3500, 2600, 1600, 1260, 1140, 1040 Expansion / Connectivity Console ports USB (Type-B), Ethernet (RJ-45) Expansion Slot(s) 1 network module slot and 1 power redundant slot Network Modules Selection ● C3850-NM-4-1G: 4 x 1G uplinks network module
●C3850-NM-2-10G: 2 x 10G or 4 x 1G uplinks network module
Stacking cable ●STACK-T1-50CM StackWise stacking cable with a 0.5 m length
●STACK-T1-1M StackWise stacking cable with a 1.0 m length
●STACK-T1-3M StackWise stacking cable with a 3.0 m length
Stack Power Cable (recommended) ●CAB-SPWR-30CM stack power cable with a 30CM length
●CAB-SPWR-150CM stack power cable with a 150CM length
Power supply PWR-C1-350WAC Power Device Power supply - redundant - plug-in module Power Redundancy optional Voltage range (Auto) 100V-240V Power Consumption of standalone(in Watts) 109.75 (Max) Miscellaneous Width 17.5 Inches (44.5 Cm) Depth 17.7 Inches (45.0 Cm) Height 1.75 Inches (4.45 Cm) Weight 15.48 Pounds (7.02Kg) Rack Mounting Kit optional MTBF in hours 315,840 Compliant Standards ● IEEE 802.1D Spanning Tree Protoco
● IEEE 802.1p CoS Prioritization
● IEEE 802.1Q VLAN
● IEEE 802.1s
● IEEE 802.1w
● IEEE 802.1X
● IEEE 802.1X-Rev
● IEEE 802.1ab (LLDP)
● IEEE 802.3ad
● IEEE 802.3x full duplex on 10BASE-T, 100BASE-TX, and 1000BASE-T ports
● IEEE 802.3 10BASE-T
● IEEE 802.3u 100BASE-TX
● IEEE 802.3ab 1000BASE-T
● IEEE 802.3z 1000BASE-X
● RMON I and II standards
● SNMP v1, v2c, and v3
System software / license System software IOS IP Base (Upgradable) EnergyWise license ENERGY-MGMT, ENERGY-MGT-100-K9 Software license ●C3850-24-S-E: IP Base to IP Services RTU paper license
●L-C3850-24-S-E: IP Base to IP Services RTU electronic license
Access Point Licenses ●L-LIC-CT3850-UPG: Primary upgrade license SKU for Cisco 3850 wireless controller (e-delivery)
●L-LIC-CTIOS-1A: 1 access point adder license for Cisco IOS Software based wireless controller (e-delivery)
●LIC-CT3850-UPG: Primary upgrade license SKU for Cisco 3850 wireless controller (paper license)
●LIC-CTIOS-1A: 1 access point adder license for the Cisco IOS Software based wireless controller (paper license)
features ●RPS Support ● Jumbo Frames ● VLANS ●Voice Vlan ●VTPv2 ●CDPv2 ●LLDP ● 802.3ad LACP and PAgP ● PVST/PVST+ ● 802.1W/802.1S ●Port Fast/Uplink Fast ●Dynamic Trunking Protocol (DTP) ● port CoS Trust and Override ● Trusted Boundary ● ACL Classification ●ingress Policing ● Auto QoS ● Per VLAN policies ● 802.1p queues ● Scheduling ● Priority Queuing ● Configure CoS Priority Queues ●Configure CoS Priority Queues ● Configure Queue Weights ● Configure Buffers and Thresholds ●Class & Policy Maps ● Modify CoS and DSCP Mapping ● Weighted Tail Drop ● IGMPv1,v2,v3 and MLDv1, v2 ● DHCP server ● DSCP transparency ● HSRP, VRRP ● RIPv1, v2 EIGRP stub, PIM stub, OSPF stub ● IPV6 management Advanced Network security ● Port security ● DHCP snooping ●Dynamic ARP inspection (DAI) ● IP source guard ●The Unicast Reverse Path Forwarding (uRPF)
● Bidirectional data support on a SPAN ● User authentication
● Private VLAN ●Router and VLAN ACLs ● complete identity and security
● Multidomain authentication ● MAC address notification
● IGMP filtering ● Cisco security VLAN ACL
● Secure Shell (SSH) Protocol, Kerberos, and Simple Network Management Protocol Version 3 (SNMPv3)
● Port-based ACLs ● TrustSec SXP ● IEEE 802.1ae
● TACACS+ and RADIUS authentication ● Cisco standard and extended IP security router ACLs
● Bridge protocol data unit (BPDU) Guard
● Spanning Tree Root Guard (STRG) ● Wireless end-to-end security
Management ●BRIDGE-MIB ●CISCO-AUTH-FRAMEWORK-MIB
●CISCO-BGP4-MIB, BGP4-MIB ●CISCO-BRIDGE-EXT-MIB
●CISCO-MDI-METRICS-MIB ●CISCO-FLASH-MIB ●CISCO-OSPF-MIB
●CISCO-OSPF-TRAP-MIB ●CISCO-PAE-MIB ●CISCO-PAGP-MIB
●CISCO-PIM-MIB ●CISCO-PING-MIB ●CISCO-PORT-QOS-MIB
●CISCO-SYSLOG-MIB ●CISCO-TCP-MIB ●CISCO-UDLDP-MIB
●CISCO-VLAN-IFTABLE-RELATIONSHIP-MIB ●CISCO-VLAN-MEMBERSHIP-MIB ●CISCO-VTP-MIB ●EtherLike-MIB
●HC-RMON-MIB ●IEEE8021-PAE-MIB ●IEEE8023-LAG-MIB
●IF-MIB ●IGMP-MIB ●IGMP-STD-MIB ●IP-FORWARD-MIB
●IP-MIB ●IPMROUTE-STD-MIB ●LLDP-EXT-MED-MIB
●RMON-MIB ●SNMP-COMMUNITY-MIB ●SNMP-FRAMEWORK-MIB
●SNMP-MPD-MIB ●SNMP-NOTIFICATION-MIB ●SNMP-PROXY-MIB
●SNMP-TARGET-MIB ●SNMP-USM-MIB ●SNMPv2-MIB
●SNMP-VIEW-BASED-ACM-MIB ●TCP-MIB ●UDP-MIB
Technical Support and Services ● Cisco SMARTnet Service ● Cisco Smart Foundation Service ● Cisco SP Base Service ● Cisco Focused Technical Support Services Environmental Ranges Fahrenheit Centigrade With AC power supply
Operating environment and altitude
Operating temperature up to 5000 ft (1500 m) 23ºF to 113ºF -5ºC to +45ºC Operating temperature up to 10,000 ft (3000 m) 23ºF to 104ºF -5ºC to +40ºC Short-term exception at sealevel with single fan failure 23ºF to 113ºF -5ºC to +45ºC Short-term exception up to 5000 feet (1500 m) 23ºF to 122ºF -5ºC to 50ºC Short-term exception up to 10,000 feet (3000 m) 23ºF to 113ºF -5ºC to 45ºC With DC power supply
Operating environment and altitude (NEBS)
Operating temperature up to 6000 ft (1800 m) 23ºF to 113ºF -5ºC to +45ºC Operating temperature up to 10,000 ft (3000 m) 23ºF to 104ºF -5ºC to +40ºC Operating temperature up to 13,000 ft (4000m) 23ºF to 95ºF -5ºC to 35ºC Short-term exception up to 6,000 feet (1800 m) 23ºF to 131ºF -5ºC to +55ºC Short-term exception up to 10,000 feet (3000 m) 23ºF to 122ºF -5ºC to +50ºC Short-term exception up to 13,000 feet (4000 m) 23ºF to 113ºF -5ºC to +45ºC Short-term exception at sealevel with single fan failure 23ºF to 113ºF -5ºC to +45º Storage environment -40ºF to 160ºF -40ºC to 70ºC Feet Meters Operating altitude Up to 13,000 Up to 4000m Storage altitude Up to 15,000 Up to 4573m Operating relative humidity 10% to 95% noncondensing Storage relative humidity 10% to 95% noncondensing
Does the Cisco Catalyst 3850 support 802.1ae on downlink ports?
The Cisco Catalyst 3850 is hardware capable for 802.1ae on all ports on the switch. Software support will be available later.
What management ports are available on the Cisco WS-C3850-24S-S?
The Cisco Catalyst 3850 comes with a 10/100 Ethernet dedicated management port on the backside of the switch right above the console port. This port is in separate VRF called “Mgmt-vrf.” This is to segment the management traffic from the global routing table of the switch.
What are the different types of licenses in the Cisco Catalyst 3850?
There are two main types of Cisco Catalyst 3850 license: permanent RTU license and evaluation RTU license. These are available for both image-based licensing (IP Base or IP Services) and AP count licensing. A permanent RTU license is a paid license, with no expiration date. The universal Cisco IOS XE Softwarebased images have all three license levels: LAN Base, IP Base, and IP Services. RTU CLI commands enable the switch license to be moved between different license levels. An evaluation RTU license allows the customers to evaluate image-based and/or AP count license for 90 days at no cost.
What are the supported uplink modules in the Cisco Catalyst 3850?
The Cisco Catalyst 3850 supports the following uplink modules:
● 4 x 1GE network module
● 2 x 1/10GE network module
● 4 x 1/10GE network module (can be used for the 48-port RJ-45 models and for the 12-port (or higher) 10‑gigabit-capable models)
● 8 x 10GE network module (can be used on the 24-port and 48-port multigigabit switch and also on the 24‑port 10G SFP+ switch)
● 2 x 40GE network module (can be used on the 24-port and 48-port multigigabit switch and also on the 24‑port 10G SFP+ switch)
Does the Cisco Catalyst 3850 10G SFP+ 48-port switch support uplink modules?
No. It has 4 fixed 40G QSFP ports for uplinks. This is not field-replaceable.
How do you manage the Cisco Catalyst 3850?
The Cisco Catalyst 3850 can be managed using the Cisco IOS Software CLI or using Cisco Prime ™ Infrastructure 2.0.
Can both console ports be used simultaneously?
No. When the USB console is used, the RJ-45 console receives the output of the USB console as well. This design allows the administrator to see when the USB console port is in use. This capability is useful for remote administrators.
Can the Cisco Catalyst 3850 act as a wired switch?
The Cisco Catalyst 3850 switch can act as a wired switch as well as a converged wired wireless switch.
What is SSO technology?
The Cisco SSO technology synchronizes the Layer 2/3 and wireless tunnel protocol state machines from Active to Standby stack switch. During Active switch switchover the Standby switch performs graceful-recovery with neighbors without disrupting network topology.
How many Cisco Catalyst 3850 switches can make up a Cisco StackPower stack?
Up to four switches can become part of the same Cisco StackPower stack in a ring topology.
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