Advanced Security Features for 2 Port Router
The Cisco 2851 Voice Bundle 11 Slots 2 Ports Router (CISCO2851-V/K9) is a high-performance router designed for large enterprise and service provider networks, it has several advanced security features to protect the network and the voice traffic. Here are some of the advanced security features of the CISCO2851-V/K9:
- Firewall: The CISCO2851-V/K9 supports stateful firewall to protect the network from unauthorized access and malicious attacks.
- VPN: The CISCO2851-V/K9 supports VPN technologies such as IPsec and MPLS VPN, allowing for secure remote access and connectivity for branch offices and mobile workers.
- Network Address Translation (NAT): The CISCO2851-V/K9 supports NAT, which allows for the use of private IP addresses on the internal network, while still allowing for access to the internet.
- Intrusion Prevention System (IPS): The CISCO2851-V/K9 supports IPS, which helps to detect and prevent network intrusions and other malicious activities.
- Secure Real-time Transport Protocol (SRTP): SRTP is supported by the CISCO2851-V/K9 to encrypt the voice traffic, preventing eavesdropping and tampering of the voice calls.
- Secure Voice over IP (SVoIP): The CISCO2851-V/K9 supports SVoIP, which helps to secure the voice traffic by using a combination of encryption, authentication, and integrity protection mechanisms.
- Access Control Lists (ACLs): The CISCO2851-V/K9 supports Access Control Lists (ACLs), which allow for granular control over network access based on IP address, protocol, and other parameters.
- Authentication, Authorization, and Accounting (AAA): The CISCO2851-V/K9 supports AAA, which provides for secure and centralized management of user authentication, authorization, and accounting.
Quality of Service (QoS) for Voice Traffic
The Cisco 2851 Voice Bundle 11 Slots 2 Ports Router (CISCO2851-V/K9) is designed for large enterprise and service provider networks, which handle voice traffic over a wired network. Quality of Service (QoS) is an important feature of the CISCO2851-V/K9 to ensure that the voice traffic is delivered with the necessary quality and reliability.
- Prioritization: The CISCO2851-V/K9 supports different levels of prioritization for voice traffic, allowing for the proper handling of voice packets. Voice traffic is given priority over other types of traffic, such as data traffic, to ensure that it is delivered with minimal delay and jitter.
- Class-Based Weighted Fair Queuing (CBWFQ): CBWFQ is supported by the CISCO2851-V/K9 to ensure that voice traffic is allocated the necessary bandwidth. With CBWFQ, the router can assign a higher priority to voice traffic and ensure that it is delivered with minimal delay and jitter.
- Low Latency Queuing (LLQ): LLQ is supported by the CISCO2851-V/K9 to ensure that voice traffic is delivered with minimal delay and jitter. With LLQ, the router can assign a higher priority to voice traffic, and ensure that it is delivered with minimal delay and jitter.
- Call Admission Control (CAC): CAC is supported by the CISCO2851-V/K9 to ensure that the network does not become overloaded with voice traffic. With CAC, the router can limit the number of voice calls that can be made at any given time, ensuring that the network is not overwhelmed with voice traffic.
- Compression: The CISCO2851-V/K9 supports voice compression, which helps to conserve bandwidth and improve voice quality.
These QoS features help to ensure that the CISCO2851-V/K9 can handle the demands of voice traffic and deliver it with the necessary quality and reliability. It will ensure the smooth working of the voice system and the voice traffic is delivered with minimal delay and jitter.
Voice Compression and Conferencing
The Cisco 2851 Voice Bundle 11 Slots 2 Ports Router (CISCO2851-V/K9) is designed for large enterprise and service provider networks, which handle voice traffic over a wired network. The CISCO2851-V/K9 has several features for voice compression and conferencing to ensure that the voice traffic is delivered with optimal quality and efficiency.
- Voice Compression: The CISCO2851-V/K9 supports voice compression, which helps to conserve bandwidth and improve voice quality. Voice compression reduces the size of the voice packets, allowing more packets to be sent over the network at a time, improving the efficiency of the network.
- G.711, G.726, G.729, and G.722 codecs: CISCO2851-V/K9 supports various codecs such as G.711, G.726, G.729, and G.722, which are used to compress and decompress voice traffic. These codecs provide different levels of compression and audio quality.
- Voice Conferencing: The CISCO2851-V/K9 supports voice conferencing, which allows multiple people to participate in a single voice call. This feature is useful for conference calls, webinars, and other types of group communications.
- Conference Bridge: CISCO2851-V/K9 supports conference bridge which allows multiple people to participate in a single voice call. Conference bridges can be software- or hardware-based, and they can be configured to support different types of conferencing such as voice, video, and web.
- Music on Hold (MOH): The CISCO2851-V/K9 supports MOH, which allows for the playing of music or other audio to callers who are on hold. This feature can be used to improve the caller experience and to provide information or advertising while the caller is on hold.
General Information about this CISCO2851-V/K9
- Manufacturer: Cisco Systems, Inc
- Manufacturer Part Number: CISCO2851-V/K9
- Brand Name: Cisco
- Product Series: 2800
- Product Model: 2851
- Product Name: 2851 Router with Voice Bundle
- Product Type: Router
Interfaces / Ports
- Total Number of Ports: 2
- Number of Network (RJ-45) Ports: 2
- Number of Total Expansion Slots: 11
- Expansion Slot Type: NME
- Expansion Slot Type: EVM
- Expansion Slot Type: AIM
- Expansion Slot Type: PVDM
Network & Communication
- Network Technology: 10/100/1000Base-T
- Ethernet Technology: Gigabit Ethernet
- Standard Memory: 256 MB
- Flash Memory: 64 MB
About Refurbished Products
Routers lead the line as the first line of network security in homes and offices. It prevents intrusion into a network while creating a firewall to provide the highest level of security on several network types. They are the best ways of keeping computer systems, network systems, and information contained in them safe from intrusion.
A router is designed to be more capable than several other network devices such as hubs or switches that can only carry out basic network functions. For instance, a hub only transfers data between network devices without analyzing or doing anything with those data. On the other hand, routers are able to analyze data sent between network devices. They can change the packaging of such data and send it over to a different network.
Routers are the perfect devices to share an internet connection between multiple computers in home networks. A router typically connects to the modem using a network cable. Router networking occurs via a WAN port or the internet. There are also wireless routers that connect to devices using different wireless standards.
The hardware inside these routers allows them to cope with several network use at the same time. Many of these routers come with dual-core and quad-core processors. These processor options allow them to handle lots of data more effectively. Users can use their Wi-Fi routers for activities such as video streaming, online gaming, data backups, and more. Even while carrying out those operations, the routers perform at the highest levels.
Users will get routers that broadcast wireless signals over two frequencies (for dual-band) or more (for tri-band and others). These routers run at frequencies that can cover a wide expanse of area. They are not congested and are perfect for office buildings, homes, and large enterprises. Clients will find routers that emit their signals between 2.4 GHz and 5 GHz.
Built-in Security Features
These router networking devices also come with security features such as device quarantine, firmware updates, automatic updates, and more. The features allow them to provide network-level protection against attacks. With these features, cyber criminals will be unable to infiltrate home networks.
Types of Routers
There are several types of routers that users can benefit from. Some of them include:
- Core Routers. These are the types used by Internet Service Providers. They are the fastest and most powerful types. They sit at the center of the internet and forward data through the main fiber Optics.
- Wireless Routers. These work in a similar manner as a home or business LAN. However, they give room for better mobility for laptops, tablets, and other portable devices. These types offer transmission over short distances.
- Enterprise Routers. These are the types employed by large companies. Organizations use enterprise routers to connect their networks to these core routers.
- Branch Routers. These types connect an enterprise's remote offices to its Wide Area Network (WAN). They come with improved features such as wireless LAN management, time-division multiplexing, WAN acceleration, and more.
- Edge Routers. These are the most commonly used types in homes and small businesses. They are low-capacity devices that connect to the public internet or private WAN, or external LAN.
- Logical Routers. They function similarly to hardware to create several network routes.
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