To Next PageTo Next Page
Need help?Do you have a question about the Cisco 2921 and is the answer not in the manual?
General| Ethernet LAN | Yes |
|---|---|
| Cabling technology | 10/100/1000Base-T(X) |
| Networking standards | IEEE 802.1Q, IEEE 802.1ag, IEEE 802.3, IEEE 802.3ab, IEEE 802.3af, IEEE 802.3ah, IEEE 802.3u |
| Ethernet LAN data rates | 10, 100, 1000 Mbit/s |
| Ethernet interface type | Gigabit Ethernet |
| Product color | Black |
| Rack capacity | 2U |
| USB version | 2.0 |
| RS-232 ports | 1 |
| USB ports quantity | 2 |
| Ethernet LAN (RJ-45) ports | 3 |
| DHCP client | - |
| Routing protocols | BGP, EIGRP, OSPF |
| Supported protocols | IPv4, IPv6, IS-IS, IGMPv3, PIM SM, SSM, DVMRP, IPSec, GRE, BVD, MPLS, L2TPv3, PPP, MLPPP, MLFR, HDLC, RS-232, RS-449, X.21, V.35, EIA-530, PPPoE, ATM |
| Firewall security | Cisco IOS |
| Operating altitude | 0 - 3000 m |
| Non-operating altitude | 0 - 4570 m |
| Storage temperature (T-T) | -40 - 70 °C |
| Operating temperature (T-T) | 0 - 40 °C |
| Storage relative humidity (H-H) | 5 - 95 % |
| Operating relative humidity (H-H) | 10 - 85 % |
| AC input voltage | 100 - 240 V |
| Power source type | AC |
| AC input frequency | 47 - 63 Hz |
| Safety | UL 60950-1, CAN/CSA C22.2 No. 60950-1, EN 60950-1, AS/NZS 60950-1, IEC 60950-1 |
| Electromagnetic compatibility | 47 CFR, ICES-003, EN55022, CISPR22, AS/NZS 3548, VCCI V-3, EN 300-386, EN 61000, EN 55024, CISPR 24EN50082-1 |
Weight and Dimensions| Depth | 469.9 mm |
|---|---|
| Width | 438.2 mm |
| Height | 88.9 mm |
| Weight | 13200 g |
Provides initial steps for router setup and configuration using Cisco IOS CLI.
Guides on configuring essential global parameters for the router.
Provides steps for manually configuring static routing paths through the network.
Explains how network protocols adjust paths based on traffic and topology changes.
Enables NID functionality on the router without requiring NID hardware.
Configures Connectivity Fault Management (CFM) on a port Maintenance End Point (MEP).
Details Y.1731 Performance Monitoring for Ethernet PM on L3 subinterfaces.
Details configuration of Connectivity Fault Management (CFM) over EVC Bridge Domains.
Explains Y.1731 Performance Monitoring for EVC Bridge Domains.
Provides steps to configure the EtherChannel feature on Cisco ISRs.
Details configuring a stateful firewall for packet inspection and connection monitoring.
Describes deploying security policies by assigning interfaces to zones and configuring policies.
Details the Dynamic Multipoint VPN (DMVPN) feature for scaling IPsec VPNs.
Explains Group Encrypted Transport (GET) VPN for securing IP multicast and unicast traffic.
Provides procedures for upgrading the Cisco IOS image on the router.
Guides on saving backup copies of the startup configuration and system image.
Covers security features for wireless devices like disabling mode button and access control.
Details methods to prevent unauthorized users from reconfiguring or viewing the wireless device.
Describes how to control access to configuration files and privileged EXEC commands.
Describes controlling administrator access to wireless devices using RADIUS.
Details controlling administrator access to wireless devices using TACACS+.
Describes how to configure the Secure Shell (SSH) feature for secure remote connections.
Provides procedures for performing initial configuration using the Cisco IOS CLI.
Details how to set enable and enable secret passwords for enhanced security.
Shows how to assign an IP address and interface description to an Ethernet interface.
Describes how to specify a default route when IP routing is enabled.
Describes how to load a system image using the boot ROM monitor command.
Explains how to modify the configuration register settings while in ROM monitor mode.
Describes how to download a Cisco IOS software image from a remote TFTP server.
Provides steps to modify configuration register settings using the Cisco IOS CLI.
