Toll-free: 3008-3088
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Free standard shipping on orders over $99
Estimated to be delivered on 12/01/2022 - 15/10/2022.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
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CBS250-24P-4G 规格 | |
容量(以百万数据包每秒 (mpps) 为单位)(64 字节数据包) | 41.66 |
| 56.0 |
PoE 专用电源 | 195 瓦 |
支持PoE的端口数量 | 24 |
系统端口总数 | 28 千兆以太网 |
RJ-45 端口 | 24 千兆以太网 |
数据包缓冲区 | 1.5 兆字节 |
单位尺寸(宽 x 深 x 高) | 445 x 299 x 44 毫米(17.5 x 11.77 x 1.73 英寸) |
第 2 层 | |
虚拟局域网 | 同时支持最多 255 个活动 VLAN 基于端口和基于 802.1Q 标签的 VLAN 管理 VLAN 访客 VLAN |
语音 VLAN | 语音流量会自动分配到特定于语音的 VLAN,并采用适当级别的 QoS 进行处理。 语音服务发现协议 (VSDP)提供全网零接触部署语音端点和呼叫控制设备 |
第 3 层路由 | |
IPv4 路由 | IPv4 数据包的线速路由 最多 32 个静态路由和最多 16 个 IP 接口 |
IPv6 路由 | IPv6 数据包的线速路由 |
第 3 层接口 | 物理端口、LAG、VLAN 接口或环回接口上的第 3 层接口配置 |
安全 | |
安全套接字层 (SSL) | SSL 加密所有 HTTPS 流量,允许安全访问基于浏览器的管理 GUI |
安全外壳 (SSH) 协议 | SSH 是 Telnet 流量的安全替代品。安全复制 (SCP) 也使用 SSH。支持 SSH v1 和 v2。 |
IEEE 802。1X(认证者角色) | 远程身份验证拨入用户服务 (RADIUS) 身份验证、访客 VLAN、单/多主机模式以及单/多会话 |
STP 环回保护 | 提供针对第 2 层转发环路(STP 环路)的额外保护 |
安全核心技术 (SCT) | 确保 |
保护敏感数据 (SSD) | 一种在网络上安全地管理敏感数据(如密码、密钥等)的机制 |
值得信赖的系统 | 值得信赖的系统为思科产品提供了高度安全的基础 运行时防御(可执行空间保护 [X-Space]、地址空间布局随机化 [ASLR]、内置对象大小检查 [BOSC]) |
港口安全 | 能够将源 MAC 地址锁定到端口并限制学习到的 MAC 地址数量 |
半径 | 支持RADIUS身份验证进行管理访问。 |
风暴控制 | 广播、多播和未知单播 |
预防DoS | 预防拒绝服务 (DoS) 攻击 |
CLI 中的多个用户权限级别 | 1、7 和 15 级权限级别 |
访问控制列表 (ACL) | 支持最多 512 条规则 根据源和目标 MAC、VLAN ID 或 IPv4 或 IPv6 地址、IPv6 流标签、协议、端口、差异化服务代码点 (DSCP)/IP 优先级、TCP/UDP 源和目标端口、802.11ac 进行丢弃或速率限制。1p 优先级、以太网类型、互联网控制消息协议 (ICMP) 数据包、IGMP 数据包、TCP 标志;ACL 可应用于入口和出口端 支持基于时间的 ACL |
闪光 | 256 MB |
中央处理器 | 800 MHz ARM |
动态随机存取记忆体 | 512 MB |
环境的 | |
力量 | 100 至 240V 50 至 60 Hz,内部,通用:CBS250-16T-2G、CBS250-16P-2G、CBS250-24T-4G、CBS250-24PP-4G、CBS250-24P-4G、CBS250-24FP-4G、CBS250-48T-4G、CBS250-48PP-4G、CBS250-48P-4G、CBS250-24T-4X、CBS250-24P-4X、CBS250-24FP-4X、CBS250-48T-4X、CBS250-48P-4X 100 至 240V 50 至 60 Hz,外部:CBS250-8T-D、CBS250-8PP-D、CBS250-8T-E-2G、CBS250-8PP-E-2G、CBS250-8P-E-2G、CBS250-8FP-E-2G |
认证 | UL(UL 62368)、CSA(CSA 22.2)、CE 标志、FCC 第 15 部分(CFR 47)A 类 |
工作温度 | 对于 CBS250-8T-D 和 CBS250-8PP-D,温度为 32° 至 122°F(0° 至 50°C) 其他型号为 23° 至 122°F(-5° 至 50°C) |
存储温度 | -13° 至 158°F(-25° 至 70°C) |
工作湿度 | 10% 至 90%,相对湿度,无凝结 |
存储湿度 | 10% 至 90%,相对湿度,无凝结 |
保修单 | 有限寿命 |
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You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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Pharetro Lorem | Pellentesque diam dolor elementum etos lobortis des mollis |
Milancelos | Donec pretium egestas sapien et mollis |
Pellentesque | Sedcus faucibus an sullamcorper mattis drostique des commodo pharetras |
Proin Molestie | Pellentesque diam dolor elementum etos lobortis des mollis |
Cosmopolis | Donec pretium egestas sapien et mollis |
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