随着技术的发展，思科几乎每年都在升级其产品。如果你有 Cisco 旧设备，你会发现一些 EOS & EOL 产品比以前不好用。因此，您必须获得新设备来替换那些旧设备。
- Cisco Catalyst 3850 系列的替代产品：
| 停售产品部件号 | 更换产品部件号 |
| C1-WS3850-24P/K9 | C9300-24P-A |
| C1-WS3850-24T/K9 | C9300-24T-A |
| C1-WS3850-24U/K9 | C9300-24U-A |
| C1-WS3850-48F/K9 | C9300-48P-A |
| C1-WS3850-48P/K9 | C9300-48P-A |
| C1-WS3850-48T/K9 | C9300-48T-A |
| C1-WS3850-48U/K9 | C9300-48U-A |
| C1-WSC3850-12X48UL | C9300-48UXM-A |
| C1-WSC3850-24XUL | C9300-24UX-A |
| CDB-3850-24U-L | C9300-24U-E |
| CDB-3850-24U-L | CDB-8U |
| CDB-3850-48U-L | C9300-48U-E |
| CDB-3850-48U-L | CDB-8U |
| EDU-C3850-24P-L | C9300-24P-EDU |
| EDU-C3850-24P-S | C9300-24P-EDU |
| EDU-C3850-24U-L | C9300-24U-EDU |
| EDU-C3850-48F-L | C9300-48P-EDU |
| EDU-C3850-48F-S | C9300-48P-EDU |
| EDU-C3850-48P-L | C9300-48P-EDU |
| EDU-C3850-48P-S | C9300-48P-EDU |
| EDU-C3850-48PW-S | C9300-48P-EDU |
| EDU-C3850-48U-L | C9300-48U-EDU |
| EDU-C3850-48U-S | C9300-48U-EDU |
| WS-C3850-12X48U-E | C9300-48UXM-A |
| WS-C3850-12X48U-EJ | C9300-48UXM-A |
| WS-C3850-12X48U-L | C9300-48UXM-E |
| WS-C3850-12X48U-LJ | C9300-48UXM-E |
| WS-C3850-12X48U-S | C9300-48UXM-A |
| WS-C3850-12X48U-SJ | C9300-48UXM-A |
| WS-C3850-12X48UW-S | C9300-48UXM-A |
| WS-C3850-24P-BA | C9300-24P-A |
| WS-C3850-24P-E | C9300-24P-A |
| WS-C3850-24P-E-BR | C9300-24P-A-BR |
| WS-C3850-24P-L | C9300-24P-E |
| WS-C3850-24P-L-BR | C9300-24P-E-BR |
| WS-C3850-24P-S | C9300-24P-A |
| WS-C3850-24P-S-BR | C9300-24P-A-BR |
| WS-C3850-24PW-S | C9300-24P-A |
| WS-C3850-24T-BA | C9300-24T-A |
| WS-C3850-24T-E | C9300-24T-A |
| WS-C3850-24T-E-BR | C9300-24T-A-BR |
| WS-C3850-24T-L | C9300-24T-E |
| WS-C3850-24T-L-BR | C9300-24T-E-BR |
| WS-C3850-24T-S | C9300-24T-A |
| WS-C3850-24T-S-BR | C9300-24T-A-BR |
| WS-C3850-24U-E | C9300-24U-A |
| WS-C3850-24U-L | C9300-24U-E |
| WS-C3850-24U-S | C9300-24U-A |
| WS-C3850-24UW-S | C9300-24U-A |
| WS-C3850-24XU-E | C9300-24U-A |
| WS-C3850-24XU-EJ | C9300-24U-A |
| WS-C3850-24XU-L | C9300-24U-E |
| WS-C3850-24XU-LJ | C9300-24U-E |
| WS-C3850-24XU-S | C9300-24U-A |
| WS-C3850-24XU-SJ | C9300-24U-A |
| WS-C3850-24XUW-S | C9300-24U-A |
| WS-C3850-48F-BA | C9300-48P-A |
| WS-C3850-48F-E | C9300-48P-A |
| WS-C3850-48F-E-BR | C9300-48P-A-BR |
| WS-C3850-48F-L | C9300-48P-E |
| WS-C3850-48F-L-BR | C9300-48P-E-BR |
| WS-C3850-48F-S | C9300-48P-A |
| WS-C3850-48F-S-BR | C9300-48P-A-BR |
| WS-C3850-48P-E | C9300-48P-A |
| WS-C3850-48P-E-BR | C9300-48P-A-BR |
| WS-C3850-48P-L | C9300-48P-E |
| WS-C3850-48P-L-BR | C9300-48P-E-BR |
| WS-C3850-48P-S | C9300-48P-A |
| WS-C3850-48P-S-BR | C9300-48P-A-BR |
| WS-C3850-48PW-S | C9300-48P-A |
| WS-C3850-48PW-SZ | C9300-48P-A |
| WS-C3850-48T-BA | C9300-48T-A |
| WS-C3850-48T-E | C9300-48T-A |
| WS-C3850-48T-E-BR | C9300-48T-A-BR |
| WS-C3850-48T-L | C9300-48T-E |
| WS-C3850-48T-L-BR | C9300-48T-E-BR |
| WS-C3850-48T-S | C9300-48T-A |
| WS-C3850-48T-S-BR | C9300-48T-A-BR |
| WS-C3850-48U-E | C9300-48U-A |
| WS-C3850-48U-L | C9300-48U-E |
| WS-C3850-48U-S | C9300-48U-A |
| WS-C3850-48UW-S | C9300-48U-A |
| WS-C3850-48W-S | C9300-48P-A |
| WS-C3850R-24T-E | C9300-24T-A |
| WS-C3850R-24T-L | C9300-24T-E |
| WS-C3850R-24T-S | C9300-24T-A |
| WS-C3850R-48P-E | C9300-48P-A |
| WS-C3850R-48P-L | C9300-48P-E |
| WS-C3850R-48P-S | C9300-48P-A |
| WS-C3850R-48T-E | C9300-48T-A |
| WS-C3850R-48T-L | C9300-48T-E |
| WS-C3850R-48T-S | C9300-48T-A |
| WS-C3850R-48U-E | C9300-48U-A |
| WS-C3850R-48U-L | C9300-48U-E |
| WS-C3850R-48U-S | C9300-48U-A |
- Cisco Catalyst 4500 系列的替代产品：
| 停售产品部件号 | 更换产品部件号 |
| WS-C4507R-E | WS-C4507R+E |
| C9407R | |
| WS-C4507R-E= | WS-C4507R+E= |
| C9407R= | |
| WS-C4507RES6L-96V+ | WS-C4507RES6L+96V+ |
| C9407R-96U-BNDL-E | |
| C9407R-96U-BNDL-A | |
| WS-C4510R-E | WS-C4510R+E |
| C9410R | |
| WS-C4510R-E= | WS-C4510R+E= |
| C9410R= | |
| WS-C4510RE-S6-96V+ | WS-C4510RE-S7+96V+ |
| C9410R-96U-BNDL-E | |
| C9410R-96U-BNDL-A |